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Update PDOStatement::fetchColumn() docs for the boolean column issue.

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Fixes doc bug #68783 (pgsql: PDO::fetchColumn() false returned for value false
and no rows returned).


git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@335883 c90b9560-bf6c-de11-be94-00142212c4b1
This commit is contained in:
Adam Harvey 2015-02-04 02:34:10 +00:00
parent f5f74fc4c1
commit 5da461c02a
1 changed files with 10 additions and 1 deletions
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11
reference/pdo/pdostatement/fetchcolumn.xml
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@ -11,7 +11,7 @@
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<modifier>public</modifier> <type>string</type><methodname>PDOStatement::fetchColumn</methodname>
<modifier>public</modifier> <type>mixed</type><methodname>PDOStatement::fetchColumn</methodname>
<methodparam choice="opt"><type>int</type><parameter>column_number</parameter><initializer>0</initializer></methodparam>
</methodsynopsis>
@ -19,6 +19,15 @@
Returns a single column from the next row of a result set or &false; if
there are no more rows.
</para>
<note>
<para>
<function>PDOStatement::fetchColumn</function> should not be used to
retrieve boolean columns, as it is impossible to distinguish a value of
&false; from there being no more rows to retrieve. Use
<function>PDOStatement::fetch</function> instead.
</para>
</note>
</refsect1>
<refsect1 role="parameters">