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POCan't count an array in PHP
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  1. POCan't count an array in PHP
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    copied!<p>I've encountered a very odd issue in a class I'm creating. Here is a snippet of the class below and it's output:</p> <pre><code>class WeirdHappenings { protected $filters_list = array(); ... function build() { $filters_count = count($this-&gt;filters_list); echo "&lt;pre&gt;"; var_dump($this-&gt;filters_list); echo "&lt;br&gt;" . $filters_count . " is the count"; echo "&lt;/pre&gt;"; } } </code></pre> <p>Before you ask, yes filters_list is a populated array which is populated during the execution of the class. The Vardump proves that:</p> <pre><code>array(2) { ["filter_1"]=&gt; string(17) "calendar year nbr" ["filter_2"]=&gt; string(18) "reviewer type desc" } 0 is the count </code></pre> <p>How can this be possible? It's an array with two elements yet count can't tell me how big it is?</p> <pre><code>PHP 5.3.2-1ubuntu4.2 with Suhosin-Patch (cli) (built: May 13 2010 20:03:45) Copyright (c) 1997-2009 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies </code></pre> <p><code>error_reporting = E_ALL | E_STRICT</code></p> <p>This is the resolution:</p> <pre><code>class WeirdHappenings { protected $filters_list = array(); protected $thing = array("foo" =&gt; "bar", "ack" =&gt; "bar"); function WeirdHappenings() { } function makeMeCry() { $filters = array(); $filter_count = 1; $crapola = array("f1" =&gt; array("name" =&gt; "calendar year nbr"), "f2" =&gt; array("name" =&gt; "reviewer type desc")); foreach( $crapola as $key =&gt; $data ) { $filters["filter_$filter_count"] = $data['name']; $filter_count++; } $this-&gt;filters_list = $filters; } function build() { $filters_count = count($this-&gt;filters_list); $this-&gt;makeMeCry(); echo "&lt;pre&gt;"; var_dump($this-&gt;filters_list); var_dump($this-&gt;thing); echo "&lt;br&gt;" . $filters_count . " is the count of the filters"; echo "&lt;br&gt;" . count($this-&gt;thing) . " is the count of the thing"; echo "&lt;/pre&gt;"; } } $weirdthings = new WeirdHappenings(); $weirdthings-&gt;build(); </code></pre> <p>As pointed out in numerous comments the count was being performed prior to the population of the array.</p>
 

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