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</div><hr /><div id="types.comparisons" class="appendix">
<h1>PHP type comparison tables</h1>
<p class="para">
The following tables demonstrate behaviors of PHP
<a href="language.types.html" class="link">types</a> and
<a href="language.operators.comparison.html" class="link">comparison
operators</a>, for both loose and strict comparisons. This
supplemental is also related to the manual section on
<a href="language.types.type-juggling.html" class="link">type juggling</a>.
Inspiration was provided by various user comments and by the work over at
<a href="http://www.blueshoes.org/en/developer/php_cheat_sheet/" class="link external">» BlueShoes</a>.
</p>
<p class="para">
Before utilizing these tables, it's important to understand types and their
meanings. For example, <em>"42"</em> is a <span class="type"><a href="language.types.string.html" class="type string">string</a></span>
while <em>42</em> is an <span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>. <strong><code>FALSE</code></strong> is a
<span class="type"><a href="language.types.boolean.html" class="type boolean">boolean</a></span> while <em>"false"</em> is a
<span class="type"><a href="language.types.string.html" class="type string">string</a></span>.
</p>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
HTML Forms do not pass integers, floats, or booleans; they pass strings.
To find out if a string is numeric, you may use
<span class="function"><a href="function.is-numeric.html" class="function">is_numeric()</a></span>.
</p>
</p></blockquote>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
Simply doing <em>if ($x)</em> while <var class="varname"><var class="varname">$x</var></var> is
undefined will generate an error of level <strong><code>E_NOTICE</code></strong>.
Instead, consider using <span class="function"><a href="function.empty.html" class="function">empty()</a></span> or
<span class="function"><a href="function.isset.html" class="function">isset()</a></span> and/or initialize your variables.
</p>
</p></blockquote>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
Some numeric operations can result in a value represented by the constant
<strong><code>NAN</code></strong>. Any loose or strict comparisons of this value
against any other value, including itself, will have a result of <strong><code>FALSE</code></strong>.
(i.e. <em>NAN != NAN</em> and <em>NAN !== NAN</em>)
Examples of operations that produce <strong><code>NAN</code></strong> include
<em>sqrt(-1)</em>, <em>asin(2)</em>, and
<em>asinh(0)</em>.
</p>
</p></blockquote>
<p class="para">
<table class="doctable table">
<caption><strong>Comparisons of <var class="varname"><var class="varname">$x</var></var> with PHP functions</strong></caption>
<thead>
<tr>
<th>Expression</th>
<th> <span class="function"><a href="function.gettype.html" class="function">gettype()</a></span></th>
<th> <span class="function"><a href="function.empty.html" class="function">empty()</a></span></th>
<th> <span class="function"><a href="function.is-null.html" class="function">is_null()</a></span></th>
<th> <span class="function"><a href="function.isset.html" class="function">isset()</a></span></th>
<th><span class="type"><a href="language.types.boolean.html" class="type boolean">boolean</a></span> : <em>if($x)</em></th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td><em>$x = "";</em></td>
<td><span class="type"><a href="language.types.string.html" class="type string">string</a></span></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>$x = null;</em></td>
<td><span class="type"><a href="language.types.null.html" class="type NULL">NULL</a></span></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>var $x;</em></td>
<td><span class="type"><a href="language.types.null.html" class="type NULL">NULL</a></span></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><var class="varname"><var class="varname">$x</var></var> is undefined</td>
<td><span class="type"><a href="language.types.null.html" class="type NULL">NULL</a></span></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>$x = array();</em></td>
<td><span class="type"><a href="language.types.array.html" class="type array">array</a></span></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>$x = false;</em></td>
<td><span class="type"><a href="language.types.boolean.html" class="type boolean">boolean</a></span></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>$x = true;</em></td>
<td><span class="type"><a href="language.types.boolean.html" class="type boolean">boolean</a></span></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
</tr>
<tr>
<td><em>$x = 1;</em></td>
<td><span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
</tr>
<tr>
<td><em>$x = 42;</em></td>
<td><span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
</tr>
<tr>
<td><em>$x = 0;</em></td>
<td><span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>$x = -1;</em></td>
<td><span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
</tr>
<tr>
<td><em>$x = "1";</em></td>
<td><span class="type"><a href="language.types.string.html" class="type string">string</a></span></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
</tr>
<tr>
<td><em>$x = "0";</em></td>
<td><span class="type"><a href="language.types.string.html" class="type string">string</a></span></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>$x = "-1";</em></td>
<td><span class="type"><a href="language.types.string.html" class="type string">string</a></span></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
</tr>
<tr>
<td><em>$x = "php";</em></td>
<td><span class="type"><a href="language.types.string.html" class="type string">string</a></span></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
</tr>
<tr>
<td><em>$x = "true";</em></td>
<td><span class="type"><a href="language.types.string.html" class="type string">string</a></span></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
</tr>
<tr>
<td><em>$x = "false";</em></td>
<td><span class="type"><a href="language.types.string.html" class="type string">string</a></span></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
</tr>
</tbody>
</table>
</p>
<p class="para">
<table id="types.comparisions-loose" class="doctable table">
<caption><strong>Loose comparisons with <em>==</em></strong></caption>
<thead>
<tr>
<th> </th>
<th><strong><code>TRUE</code></strong></th>
<th><strong><code>FALSE</code></strong></th>
<th><em>1</em></th>
<th><em>0</em></th>
<th><em>-1</em></th>
<th><em>"1"</em></th>
<th><em>"0"</em></th>
<th><em>"-1"</em></th>
<th><strong><code>NULL</code></strong></th>
<th><em>array()</em></th>
<th><em>"php"</em></th>
<th><em>""</em></th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
</tr>
<tr>
<td><em>1</em></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>0</em></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
</tr>
<tr>
<td><em>-1</em></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>"1"</em></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>"0"</em></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>"-1"</em></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><strong><code>NULL</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
</tr>
<tr>
<td><em>array()</em></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>"php"</em></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>""</em></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
</tr>
</tbody>
</table>
</p>
<p class="para">
<table id="type.comparisons-strict" class="doctable table">
<caption><strong>Strict comparisons with <em>===</em></strong></caption>
<thead>
<tr>
<th> </th>
<th><strong><code>TRUE</code></strong></th>
<th><strong><code>FALSE</code></strong></th>
<th><em>1</em></th>
<th><em>0</em></th>
<th><em>-1</em></th>
<th><em>"1"</em></th>
<th><em>"0"</em></th>
<th><em>"-1"</em></th>
<th><strong><code>NULL</code></strong></th>
<th><em>array()</em></th>
<th><em>"php"</em></th>
<th><em>""</em></th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>1</em></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>0</em></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>-1</em></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>"1"</em></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>"0"</em></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>"-1"</em></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><strong><code>NULL</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>array()</em></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>"php"</em></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
</tr>
<tr>
<td><em>""</em></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>FALSE</code></strong></td>
<td><strong><code>TRUE</code></strong></td>
</tr>
</tbody>
</table>
</p>
</div>
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