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cs: indenting, use echo for output
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@149066 c90b9560-bf6c-de11-be94-00142212c4b1
This commit is contained in:
Friedhelm Betz
parent
ca1fca9572
commit
f2e6bd1c0c
1 changed files with 93 additions and 92 deletions
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@ -1,5 +1,5 @@
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.84 $ -->
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<!-- $Revision: 1.85 $ -->
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<chapter id="control-structures">
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<title>Control Structures</title>
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@ -49,7 +49,7 @@ if (expr)
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<![CDATA[
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<?php
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if ($a > $b)
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print "a is bigger than b";
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echo "a is bigger than b";
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?>
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]]>
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</programlisting>
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@ -69,7 +69,7 @@ if ($a > $b)
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<![CDATA[
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<?php
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if ($a > $b) {
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print "a is bigger than b";
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echo "a is bigger than b";
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$b = $a;
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}
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?>
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@ -103,9 +103,9 @@ if ($a > $b) {
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<![CDATA[
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<?php
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if ($a > $b) {
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print "a is bigger than b";
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echo "a is bigger than b";
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} else {
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print "a is NOT bigger than b";
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echo "a is NOT bigger than b";
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}
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?>
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]]>
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@ -142,11 +142,11 @@ if ($a > $b) {
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<![CDATA[
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<?php
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if ($a > $b) {
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print "a is bigger than b";
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echo "a is bigger than b";
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} elseif ($a == $b) {
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print "a is equal to b";
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echo "a is equal to b";
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} else {
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print "a is smaller than b";
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echo "a is smaller than b";
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}
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?>
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]]>
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@ -211,13 +211,13 @@ A is equal to 5
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<![CDATA[
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<?php
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if ($a == 5):
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print "a equals 5";
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print "...";
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echo "a equals 5";
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echo "...";
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elseif ($a == 6):
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print "a equals 6";
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print "!!!";
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echo "a equals 6";
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echo "!!!";
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else:
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print "a is neither 5 nor 6";
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echo "a is neither 5 nor 6";
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endif;
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?>
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]]>
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@ -282,7 +282,7 @@ while (expr): statement ... endwhile;
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$i = 1;
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while ($i <= 10) {
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print $i++; /* the printed value would be
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echo $i++; /* the printed value would be
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$i before the increment
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(post-increment) */
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}
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@ -291,7 +291,7 @@ while ($i <= 10) {
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$i = 1;
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while ($i <= 10):
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print $i;
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echo $i;
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$i++;
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endwhile;
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?>
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@ -325,7 +325,7 @@ endwhile;
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<?php
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$i = 0;
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do {
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print $i;
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echo $i;
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} while ($i > 0);
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?>
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]]>
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@ -342,7 +342,7 @@ do {
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Advanced C users may be familiar with a different usage of the
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<literal>do..while</literal> loop, to allow stopping execution in
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the middle of code blocks, by encapsulating them with
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<literal>do..while</literal>(0), and using the <link
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<literal>do..while</literal> (0), and using the <link
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linkend="control-structures.break"><literal>break</literal></link>
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statement. The following code fragment demonstrates this:
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<informalexample>
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@ -351,18 +351,18 @@ do {
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<?php
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do {
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if ($i < 5) {
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print "i is not big enough";
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echo "i is not big enough";
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break;
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}
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$i *= $factor;
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if ($i < $minimum_limit) {
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break;
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}
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print "i is ok";
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echo "i is ok";
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/* process i */
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} while(0);
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} while (0);
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?>
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]]>
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</programlisting>
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@ -426,7 +426,7 @@ for (expr1; expr2; expr3) statement
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/* example 1 */
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for ($i = 1; $i <= 10; $i++) {
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print $i;
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echo $i;
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}
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/* example 2 */
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@ -435,23 +435,23 @@ for ($i = 1; ; $i++) {
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if ($i > 10) {
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break;
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}
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print $i;
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echo $i;
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}
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/* example 3 */
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$i = 1;
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for (;;) {
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for (; ; ) {
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if ($i > 10) {
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break;
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}
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print $i;
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echo $i;
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$i++;
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}
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/* example 4 */
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for ($i = 1; $i <= 10; print $i, $i++);
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for ($i = 1; $i <= 10; echo $i, $i++);
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?>
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]]>
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</programlisting>
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@ -576,7 +576,8 @@ foreach ($arr as $value) {
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<programlisting role="php">
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<![CDATA[
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<?php
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reset ($arr);
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$arr = array("one", "two", "three");
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reset($arr);
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while (list($key, $value) = each ($arr)) {
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echo "Key: $key; Value: $value<br />\n";
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}
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@ -597,26 +598,26 @@ foreach ($arr as $key => $value) {
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<?php
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/* foreach example 1: value only */
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$a = array (1, 2, 3, 17);
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$a = array(1, 2, 3, 17);
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foreach ($a as $v) {
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print "Current value of \$a: $v.\n";
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echo "Current value of \$a: $v.\n";
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}
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/* foreach example 2: value (with key printed for illustration) */
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$a = array (1, 2, 3, 17);
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$a = array(1, 2, 3, 17);
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$i = 0; /* for illustrative purposes only */
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foreach ($a as $v) {
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print "\$a[$i] => $v.\n";
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echo "\$a[$i] => $v.\n";
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$i++;
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}
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/* foreach example 3: key and value */
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$a = array (
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$a = array(
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"one" => 1,
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"two" => 2,
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"three" => 3,
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@ -624,7 +625,7 @@ $a = array (
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);
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foreach ($a as $k => $v) {
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print "\$a[$k] => $v.\n";
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echo "\$a[$k] => $v.\n";
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}
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/* foreach example 4: multi-dimensional arrays */
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@ -636,14 +637,14 @@ $a[1][1] = "z";
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foreach ($a as $v1) {
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foreach ($v1 as $v2) {
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print "$v2\n";
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echo "$v2\n";
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}
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}
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/* foreach example 5: dynamic arrays */
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foreach (array(1, 2, 3, 4, 5) as $v) {
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print "$v\n";
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echo "$v\n";
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}
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?>
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]]>
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@ -670,7 +671,7 @@ foreach (array(1, 2, 3, 4, 5) as $v) {
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<programlisting role="php">
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<![CDATA[
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<?php
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$arr = array ('one', 'two', 'three', 'four', 'stop', 'five');
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$arr = array('one', 'two', 'three', 'four', 'stop', 'five');
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while (list (, $val) = each ($arr)) {
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if ($val == 'stop') {
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break; /* You could also write 'break 1;' here. */
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@ -816,31 +817,31 @@ while ($i++ < 5) {
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</note>
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<para>
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The following two examples are two different ways to write the
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same thing, one using a series of <literal>if</literal>
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statements, and the other using the <literal>switch</literal>
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statement:
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same thing, one using a series of <literal>if</literal> and
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<literal>elseif</literal> statements, and the other using the
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<literal>switch</literal> statement:
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<informalexample>
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<programlisting role="php">
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<![CDATA[
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<?php
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if ($i == 0) {
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print "i equals 0";
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echo "i equals 0";
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} elseif ($i == 1) {
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print "i equals 1";
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echo "i equals 1";
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} elseif ($i == 2) {
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print "i equals 2";
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echo "i equals 2";
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}
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switch ($i) {
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case 0:
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print "i equals 0";
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break;
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case 1:
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print "i equals 1";
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break;
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case 2:
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print "i equals 2";
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break;
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case 0:
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echo "i equals 0";
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break;
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case 1:
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echo "i equals 1";
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break;
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case 2:
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echo "i equals 2";
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break;
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}
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?>
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]]>
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@ -866,12 +867,12 @@ switch ($i) {
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<![CDATA[
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<?php
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switch ($i) {
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case 0:
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print "i equals 0";
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case 1:
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print "i equals 1";
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case 2:
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print "i equals 2";
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case 0:
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echo "i equals 0";
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case 1:
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echo "i equals 1";
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case 2:
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echo "i equals 2";
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}
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?>
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]]>
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@ -879,9 +880,9 @@ switch ($i) {
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</informalexample>
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</para>
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<simpara>
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Here, if $i is equal to 0, PHP would execute all of the print
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Here, if $i is equal to 0, PHP would execute all of the echo
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statements! If $i is equal to 1, PHP would execute the last two
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print statements. You would get the expected behavior ('i equals 2'
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echo statements. You would get the expected behavior ('i equals 2'
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would be displayed) only if $i is equal to 2. Thus,
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it is important not to forget <literal>break</literal> statements
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(even though you may want to avoid supplying them on purpose under
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@ -903,13 +904,13 @@ switch ($i) {
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<![CDATA[
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<?php
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switch ($i) {
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case 0:
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case 1:
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case 2:
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print "i is less than 3 but not negative";
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break;
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case 3:
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print "i is 3";
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case 0:
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case 1:
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case 2:
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echo "i is less than 3 but not negative";
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break;
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case 3:
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echo "i is 3";
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}
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?>
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]]>
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@ -925,17 +926,17 @@ switch ($i) {
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<![CDATA[
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<?php
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switch ($i) {
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case 0:
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print "i equals 0";
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break;
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case 1:
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print "i equals 1";
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break;
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case 2:
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print "i equals 2";
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break;
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default:
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print "i is not equal to 0, 1 or 2";
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case 0:
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echo "i equals 0";
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break;
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case 1:
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echo "i equals 1";
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break;
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case 2:
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echo "i equals 2";
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break;
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default:
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echo "i is not equal to 0, 1 or 2";
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}
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?>
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]]>
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@ -958,17 +959,17 @@ switch ($i) {
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<![CDATA[
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<?php
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switch ($i):
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case 0:
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print "i equals 0";
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break;
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case 1:
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print "i equals 1";
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break;
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case 2:
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print "i equals 2";
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break;
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default:
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print "i is not equal to 0, 1 or 2";
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case 0:
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echo "i equals 0";
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break;
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case 1:
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echo "i equals 1";
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break;
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case 2:
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echo "i equals 2";
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break;
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default:
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echo "i is not equal to 0, 1 or 2";
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endswitch;
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?>
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]]>
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@ -1054,7 +1055,7 @@ declare(ticks=1);
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<![CDATA[
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<?php
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// A function that records the time when it is called
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function profile ($dump = FALSE)
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function profile($dump = FALSE)
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{
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static $profile;
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@ -1072,17 +1073,17 @@ function profile ($dump = FALSE)
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register_tick_function("profile");
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// Initialize the function before the declare block
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profile ();
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profile();
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// Run a block of code, throw a tick every 2nd statement
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declare (ticks=2) {
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declare(ticks=2) {
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for ($x = 1; $x < 50; ++$x) {
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echo similar_text (md5($x), md5($x*$x)), "<br />;";
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echo similar_text(md5($x), md5($x*$x)), "<br />;";
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}
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}
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// Display the data stored in the profiler
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print_r (profile (TRUE));
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print_r(profile (TRUE));
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?>
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]]>
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</programlisting>
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