<!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>Returns the lengths of the columns of the current row in the result set</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.maxdb-fetch-fields.html">maxdb_fetch_fields</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.maxdb-fetch-object.html">maxdb_fetch_object</a></div> <div class="up"><a href="ref.maxdb.html">MaxDB Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="function.maxdb-fetch-lengths" class="refentry"> <div class="refnamediv"> <h1 class="refname">maxdb_fetch_lengths</h1> <h1 class="refname">maxdb_result::lengths</h1> <p class="verinfo">(PECL maxdb >= 1.0)</p><p class="refpurpose"><span class="refname">maxdb_fetch_lengths</span> -- <span class="refname">maxdb_result::lengths</span> — <span class="dc-title">Returns the lengths of the columns of the current row in the result set</span></p> </div> <div class="refsect1 description" id="refsect1-function.maxdb-fetch-lengths-description"> <h3 class="title">Description</h3> <p class="para">Procedural style</p> <div class="methodsynopsis dc-description"> <span class="type">array</span> <span class="methodname"><strong>maxdb_fetch_lengths</strong></span> ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$result</code></span> )</div> <p class="para rdfs-comment">Object oriented style</p> <div class="fieldsynopsis"><span class="type">array</span> <var class="varname">$maxdb_result->lengths</var>;</div> <p class="para"> The <span class="function"><strong>maxdb_fetch_lengths()</strong></span> function returns an array containing the lengths of every column of the current row within the result set represented by the <em><code class="parameter">result</code></em> parameter. If successful, a numerically indexed array representing the lengths of each column is returned or <strong><code>FALSE</code></strong> on failure. </p> </div> <div class="refsect1 returnvalues" id="refsect1-function.maxdb-fetch-lengths-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> An array of integers representing the size of each column (not including any terminating null characters). <strong><code>FALSE</code></strong> if an error occurred. </p> <p class="para"> <span class="function"><strong>maxdb_fetch_lengths()</strong></span> is valid only for the current row of the result set. It returns <strong><code>FALSE</code></strong> if you call it before calling maxdb_fetch_row/array/resource or after retrieving all rows in the result. </p> </div> <div class="refsect1 examples" id="refsect1-function.maxdb-fetch-lengths-examples"> <h3 class="title">Examples</h3> <div class="example" id="example-1263"> <p><strong>Example #1 Object oriented style</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$maxdb </span><span style="color: #007700">= new </span><span style="color: #0000BB">maxdb</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"RED"</span><span style="color: #007700">, </span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #0000BB">$query </span><span style="color: #007700">= </span><span style="color: #DD0000">"SELECT * from hotel.customer WHERE cno = 3000"</span><span style="color: #007700">;<br /><br />if (</span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #0000BB">$query</span><span style="color: #007700">)) {<br /><br /> </span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">$result</span><span style="color: #007700">-></span><span style="color: #0000BB">fetch_row</span><span style="color: #007700">();<br /><br /> </span><span style="color: #FF8000">/* display column lengths */<br /> </span><span style="color: #007700">foreach (</span><span style="color: #0000BB">$result</span><span style="color: #007700">-></span><span style="color: #0000BB">lengths </span><span style="color: #007700">as </span><span style="color: #0000BB">$i </span><span style="color: #007700">=> </span><span style="color: #0000BB">$val</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Field %2d has Length %2d\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$i</span><span style="color: #007700">+</span><span style="color: #0000BB">1</span><span style="color: #007700">, </span><span style="color: #0000BB">$val</span><span style="color: #007700">);<br /> }<br /> </span><span style="color: #0000BB">$result</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<br />}<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> </div> <div class="example" id="example-1264"> <p><strong>Example #2 Procedural style</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">maxdb_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"RED"</span><span style="color: #007700">, </span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #0000BB">$query </span><span style="color: #007700">= </span><span style="color: #DD0000">"SELECT * from hotel.customer WHERE cno = 3000"</span><span style="color: #007700">;<br /><br />if (</span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">maxdb_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #0000BB">$query</span><span style="color: #007700">)) {<br /><br /> </span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">maxdb_fetch_row</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br /><br /> </span><span style="color: #FF8000">/* display column lengths */<br /> </span><span style="color: #007700">foreach (</span><span style="color: #0000BB">maxdb_fetch_lengths</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">) as </span><span style="color: #0000BB">$i </span><span style="color: #007700">=> </span><span style="color: #0000BB">$val</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Field %2d has Length %2d\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$i</span><span style="color: #007700">+</span><span style="color: #0000BB">1</span><span style="color: #007700">, </span><span style="color: #0000BB">$val</span><span style="color: #007700">);<br /> }<br /> </span><span style="color: #0000BB">maxdb_free_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">maxdb_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> </div> <p class="para">The above example will output something similar to:</p> <div class="example-contents screen"> <div class="cdata"><pre> Field 1 has Length 4 Field 2 has Length 3 Field 3 has Length 5 Field 4 has Length 6 Field 5 has Length 5 Field 6 has Length 21 </pre></div> </div> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.maxdb-fetch-fields.html">maxdb_fetch_fields</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.maxdb-fetch-object.html">maxdb_fetch_object</a></div> <div class="up"><a href="ref.maxdb.html">MaxDB Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>