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https://github.com/sigmasternchen/php-doc-en
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adding some php.ini related stuff in partintro.
cleaning up the examples. some ws fixes. git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@64490 c90b9560-bf6c-de11-be94-00142212c4b1
This commit is contained in:
Friedhelm Betz
parent
86b80338f8
commit
95b7c9cb92
1 changed files with 120 additions and 60 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: 1.77 $ -->
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<!-- $Revision: 1.78 $ -->
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<reference id="ref.mysql">
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<title>MySQL Functions</title>
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<titleabbrev>MySQL</titleabbrev>
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@ -26,6 +26,60 @@
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Documentation for MySQL can be found at <ulink
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url="&url.mysql.docs;">&url.mysql.docs;</ulink>.
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</simpara>
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<para>
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The behaviour of the MySQL functions is affected by settings in the global
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<link linkend="configuration">configuration</link> file.
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<table>
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<title><link linkend="ini.sect.mysql">MySQL Configuration </link> Options</title>
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<tgroup cols="3">
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<thead>
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<row>
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<entry>Name</entry>
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<entry>Default</entry>
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<entry>Changeable</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>mysql.allow_persistent</entry>
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<entry>"On"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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</row>
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<row>
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<entry>mysql.max_persistent</entry>
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<entry>"-1"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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</row>
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<row>
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<entry>mysql.max_links</entry>
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<entry>"-1"</entry>
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<entry>PHP_INI_SYSTEM</entry>
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</row>
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<row>
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<entry>mysql.default_port</entry>
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<entry>NULL</entry>
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<entry>PHP_INI_ALL</entry>
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</row>
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<row>
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<entry>mysql.default_socket</entry>
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<entry>NULL</entry>
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<entry>PHP_INI_ALL</entry>
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</row>
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<row>
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<entry>mysql.default_host</entry>
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<entry>NULL</entry>
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<entry>PHP_INI_ALL</entry>
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</row>
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<row>
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<entry>mysql.default_user</entry>
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<entry>NULL</entry>
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<entry>PHP_INI_ALL</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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For further details and definition of the PHP_INI_* constants see <function>ini_set</function>.
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</para>
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<para>
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This simple example shows how to connect, execute a query, print
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resulting rows and disconnect from a MySQL database.
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@ -217,10 +271,10 @@ mysql_close($link);
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<programlisting role="php">
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<![CDATA[
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<?php
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$link = mysql_connect ("kraemer", "marliesle", "secret")
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or die ("Could not connect");
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$link = mysql_connect("kraemer", "marliesle", "secret")
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or exit("Could not connect");
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print ("Connected successfully");
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mysql_close ($link);
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mysql_close($link);
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?>
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]]>
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</programlisting>
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@ -304,10 +358,10 @@ mysql_close($link);
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<programlisting role="php">
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<![CDATA[
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<?php
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$link = mysql_connect ("localhost", "username", "secret")
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or die ("Could not connect");
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$link = mysql_connect("localhost", "username", "secret")
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or die("Could not connect");
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print ("Connected successfully");
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mysql_close ($link);
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mysql_close($link);
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?>
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]]>
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</programlisting>
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@ -350,9 +404,9 @@ mysql_close($link);
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<programlisting role="php">
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<![CDATA[
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<?php
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$link = mysql_pconnect ("kron", "jutta", "geheim")
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or die ("Could not connect");
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if (mysql_create_db ("my_db")) {
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$link = mysql_pconnect("kron", "jutta", "geheim")
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or exit("Could not connect");
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if (mysql_create_db("my_db")) {
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print ("Database created successfully\n");
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} else {
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printf ("Error creating database: %s\n", mysql_error ());
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@ -386,7 +440,7 @@ mysql_close($link);
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</funcprototype>
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</funcsynopsis>
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<para>
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&return.success;
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&return.success;
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</para>
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<para>
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<function>mysql_data_seek</function> moves the internal row
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@ -402,31 +456,31 @@ mysql_close($link);
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<programlisting role="php">
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<![CDATA[
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&<?php
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$link = mysql_pconnect ("kron", "jutta", "geheim")
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or die ("Could not connect");
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$link = mysql_pconnect("kron", "jutta", "geheim")
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or die("Could not connect");
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mysql_select_db ("samp_db")
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or die ("Could not select database");
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mysql_select_db("samp_db")
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or exit("Could not select database");
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$query = "SELECT last_name, first_name FROM friends";
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$result = mysql_query ($query)
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or die ("Query failed");
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$result = mysql_query($query)
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or die("Query failed");
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// fetch rows in reverse order
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for ($i = mysql_num_rows ($result) - 1; $i >=0; $i--) {
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if (!mysql_data_seek ($result, $i)) {
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for ($i = mysql_num_rows($result) - 1; $i >=0; $i--) {
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if (!mysql_data_seek($result, $i)) {
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echo "Cannot seek to row $i\n";
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continue;
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}
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if(!($row = mysql_fetch_object ($result)))
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if(!($row = mysql_fetch_object($result)))
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continue;
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echo "$row->last_name $row->first_name<br />\n";
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}
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mysql_free_result ($result);
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mysql_free_result($result);
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?>
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]]>
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</programlisting>
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@ -786,15 +840,16 @@ select tone.field as foo ttwo.field as bar from tone, ttwo
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<programlisting role="php">
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<![CDATA[
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<?php
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mysql_connect ($host, $user, $password);
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$result = mysql_db_query ("database","select user_id, fullname from table");
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while ($row = mysql_fetch_array ($result)) {
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mysql_connect($host, $user, $password);
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mysql_select_db("database");
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$result = mysql_query("select user_id, fullname from table");
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while ($row = mysql_fetch_array($result)) {
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echo "user_id: ".$row["user_id"]."<br>\n";
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echo "user_id: ".$row[0]."<br>\n";
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echo "fullname: ".$row["fullname"]."<br>\n";
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echo "fullname: ".$row[1]."<br>\n";
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}
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mysql_free_result ($result);
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mysql_free_result($result);
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?>
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]]>
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</programlisting>
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@ -854,13 +909,15 @@ mysql_free_result ($result);
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<programlisting role="php">
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<![CDATA[
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<?php
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mysql_connect ($host, $user, $password);
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$result = mysql_db_query ("database","select * from table");
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while ($row = mysql_fetch_assoc ($result)) {
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mysql_connect($host, $user, $password);
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mysql_select_db($database);
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$query = "select * from table";
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$result = mysql_query($query);
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while ($row = mysql_fetch_assoc($result)) {
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echo $row["user_id"];
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echo $row["fullname"];
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}
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mysql_free_result ($result);
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mysql_free_result($result);
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?>
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]]>
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</programlisting>
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@ -967,15 +1024,16 @@ mysql_free_result ($result);
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<programlisting role="php">
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<![CDATA[
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<?php
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mysql_connect ($host, $user, $password)
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mysql_connect('localhost:3306', $user, $password)
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or die ("Could not connect");
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$result = mysql_db_query ("database", "select * from table")
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or die ("Query failed");
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mysql_select_db("database");
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$result = mysql_query("select * from table")
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or die("Query failed");
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# get column metadata
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$i = 0;
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while ($i < mysql_num_fields ($result)) {
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while ($i < mysql_num_fields($result)) {
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echo "Information for column $i:<BR>\n";
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$meta = mysql_fetch_field ($result);
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$meta = mysql_fetch_field($result);
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if (!$meta) {
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echo "No information available<BR>\n";
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}
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@ -995,7 +1053,7 @@ zerofill: $meta->zerofill
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</PRE>";
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$i++;
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}
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mysql_free_result ($result);
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mysql_free_result($result);
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?>
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]]>
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</programlisting>
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@ -1086,13 +1144,14 @@ mysql_free_result ($result);
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<programlisting role="php">
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<![CDATA[
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<?php
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mysql_connect ($host, $user, $password);
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$result = mysql_db_query ("database", "select * from table");
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while ($row = mysql_fetch_object ($result)) {
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mysql_connect("hostname", "user", $password");
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mysql_select_db($db);
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$result = mysql_query("select * from table");
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while ($row = mysql_fetch_object($result)) {
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echo $row->user_id;
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echo $row->fullname;
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}
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mysql_free_result ($result);
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mysql_free_result($result);
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?>
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]]>
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</programlisting>
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@ -1217,8 +1276,10 @@ mysql_free_result ($result);
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// user_id
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// username
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// password.
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$res = mysql_db_query("users", "select * from users", $link);
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$link = mysql_connect('localhost', $user, "secret");
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mysql_select_db($dbname, $link)
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or die("Could not set $dbname");
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$res = mysql_query("select * from users", $link);
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echo mysql_field_name($res, 0) . "\n";
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echo mysql_field_name($res, 2);
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@ -1353,20 +1414,20 @@ password
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<![CDATA[
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<?php
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mysql_connect ("localhost:3306");
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mysql_select_db ("wisconsin");
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$result = mysql_query ("SELECT * FROM onek");
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$fields = mysql_num_fields ($result);
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$rows = mysql_num_rows ($result);
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mysql_connect("localhost:3306");
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mysql_select_db("wisconsin");
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$result = mysql_query("SELECT * FROM onek");
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$fields = mysql_num_fields($result);
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$rows = mysql_num_rows($result);
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$i = 0;
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$table = mysql_field_table ($result, $i);
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$table = mysql_field_table($result, $i);
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echo "Your '".$table."' table has ".$fields." fields and ".$rows." records <BR>";
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echo "The table has the following fields <BR>";
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while ($i < $fields) {
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$type = mysql_field_type ($result, $i);
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$name = mysql_field_name ($result, $i);
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$len = mysql_field_len ($result, $i);
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$flags = mysql_field_flags ($result, $i);
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$type = mysql_field_type($result, $i);
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$name = mysql_field_name($result, $i);
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$len = mysql_field_len($result, $i);
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$flags = mysql_field_flags($result, $i);
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echo $type." ".$name." ".$len." ".$flags."<BR>";
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$i++;
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}
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@ -1864,8 +1925,8 @@ echo "$num_rows Rows\n";
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<programlisting role="php">
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<![CDATA[
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<php
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$result = mysql_query ("SELECT * WHERE 1=1")
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or die ("Invalid query");
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$result = mysql_query("SELECT * WHERE 1=1")
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or die("Invalid query");
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?>
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]]>
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</programlisting>
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@ -1881,8 +1942,8 @@ $result = mysql_query ("SELECT * WHERE 1=1")
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<programlisting role="php">
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<![CDATA[
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<?php
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$result = mysql_query ("SELECT my_col FROM my_tbl")
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or die ("Invalid query");
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$result = mysql_query("SELECT my_col FROM my_tbl")
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or exit ("Invalid query");
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?>
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]]>
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</programlisting>
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@ -1914,7 +1975,6 @@ $result = mysql_query ("SELECT my_col FROM my_tbl")
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<para>
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See also: <function>mysql_num_rows</function>
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<function>mysql_affected_rows</function>,
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<function>mysql_db_query</function>,
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<function>mysql_unbuffered_query</function>,
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<function>mysql_free_result</function>,
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<function>mysql_fetch_array</function>,
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@ -2094,11 +2154,11 @@ $result = mysql_query ("SELECT my_col FROM my_tbl")
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<programlisting role="php">
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<![CDATA[
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<?php
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mysql_connect ("localhost:3306");
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$result = mysql_list_tables ("wisconsin");
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mysql_connect("host");
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$result = mysql_list_tables("wisconsin");
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$i = 0;
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while ($i < mysql_num_rows ($result)) {
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$tb_names[$i] = mysql_tablename ($result, $i);
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while ($i < mysql_num_rows($result)) {
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$tb_names[$i] = mysql_tablename($result, $i);
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echo $tb_names[$i] . "<BR>";
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$i++;
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}
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