<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Get the length of each output in a result</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.mysql-fetch-field.html">mysql_fetch_field</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.mysql-fetch-object.html">mysql_fetch_object</a></div> <div class="up"><a href="ref.mysql.html">MySQL Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="function.mysql-fetch-lengths" class="refentry"> <div class="refnamediv"> <h1 class="refname">mysql_fetch_lengths</h1> <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">mysql_fetch_lengths</span> — <span class="dc-title">Get the length of each output in a result</span></p> </div> <div id="function.mysql-fetch-lengths-refsynopsisdiv"> <div class="warning"><strong class="warning">Warning</strong> <p class="para">This extension is deprecated as of PHP 5.5.0, and will be removed in the future. Instead, the <a href="book.mysqli.html" class="link">MySQLi</a> or <a href="ref.pdo-mysql.html" class="link">PDO_MySQL</a> extension should be used. See also <a href="mysqlinfo.api.choosing.html" class="link">MySQL: choosing an API</a> guide and <a href="faq.databases.html#faq.databases.mysql.deprecated" class="link">related FAQ</a> for more information. Alternatives to this function include:</p> <ul class="simplelist"> <li class="member"> <span class="function"><a href="mysqli-result.lengths.html" class="function">mysqli_fetch_lengths()</a></span></li> <li class="member"> <span class="methodname"><a href="pdostatement.getcolumnmeta.html" class="methodname">PDOStatement::getColumnMeta()</a></span></li> </ul> </div> </div> <div class="refsect1 description" id="refsect1-function.mysql-fetch-lengths-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">array</span> <span class="methodname"><strong>mysql_fetch_lengths</strong></span> ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$result</code></span> )</div> <p class="para rdfs-comment"> Returns an array that corresponds to the lengths of each field in the last row fetched by MySQL. </p> <p class="para"> <span class="function"><strong>mysql_fetch_lengths()</strong></span> stores the lengths of each result column in the last row returned by <span class="function"><a href="function.mysql-fetch-row.html" class="function">mysql_fetch_row()</a></span>, <span class="function"><a href="function.mysql-fetch-assoc.html" class="function">mysql_fetch_assoc()</a></span>, <span class="function"><a href="function.mysql-fetch-array.html" class="function">mysql_fetch_array()</a></span>, and <span class="function"><a href="function.mysql-fetch-object.html" class="function">mysql_fetch_object()</a></span> in an array, starting at offset 0. </p> </div> <div class="refsect1 parameters" id="refsect1-function.mysql-fetch-lengths-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter"> result</code></em></span><dd> <p class="para">The result <span class="type"><a href="language.types.resource.html" class="type resource">resource</a></span> that is being evaluated. This result comes from a call to <span class="function"><a href="function.mysql-query.html" class="function">mysql_query()</a></span>.</p></dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-function.mysql-fetch-lengths-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> An <span class="type"><a href="language.types.array.html" class="type array">array</a></span> of lengths on success or <strong><code>FALSE</code></strong> on failure. </p> </div> <div class="refsect1 examples" id="refsect1-function.mysql-fetch-lengths-examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example" id="example-1585"> <p><strong>Example #1 A <span class="function"><strong>mysql_fetch_lengths()</strong></span> example</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$result </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_query</span><span style="color: #007700">(</span><span style="color: #DD0000">"SELECT id,email FROM people WHERE id = '42'"</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$result</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">'Could not run query: ' </span><span style="color: #007700">. </span><span style="color: #0000BB">mysql_error</span><span style="color: #007700">();<br /> exit;<br />}<br /></span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_fetch_assoc</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$lengths </span><span style="color: #007700">= </span><span style="color: #0000BB">mysql_fetch_lengths</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$lengths</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> <div class="example-contents"><p>The above example will output something similar to:</p></div> <div class="example-contents screen"> <div class="cdata"><pre> Array ( [id] => 42 [email] => user@example.com ) Array ( [0] => 2 [1] => 16 ) </pre></div> </div> </div> </p> </div> <div class="refsect1 seealso" id="refsect1-function.mysql-fetch-lengths-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="function.mysql-field-len.html" class="function" rel="rdfs-seeAlso">mysql_field_len()</a> - Returns the length of the specified field</span></li> <li class="member"> <span class="function"><a href="function.mysql-fetch-row.html" class="function" rel="rdfs-seeAlso">mysql_fetch_row()</a> - Get a result row as an enumerated array</span></li> <li class="member"> <span class="function"><a href="function.strlen.html" class="function" rel="rdfs-seeAlso">strlen()</a> - Get string length</span></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.mysql-fetch-field.html">mysql_fetch_field</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.mysql-fetch-object.html">mysql_fetch_object</a></div> <div class="up"><a href="ref.mysql.html">MySQL Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>