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<title>Reading []</title>
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<h2 class="title">Reading []</h2>
<div class="informalexample">
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /></span><span style="color: #007700">class </span><span style="color: #0000BB">XmlTest </span><span style="color: #007700">{<br /><br /> function </span><span style="color: #0000BB">test_ref</span><span style="color: #007700">(&</span><span style="color: #0000BB">$test</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">$test </span><span style="color: #007700">= </span><span style="color: #DD0000">"ok"</span><span style="color: #007700">;<br /> }<br /><br /> function </span><span style="color: #0000BB">test</span><span style="color: #007700">(</span><span style="color: #0000BB">$test</span><span style="color: #007700">) { }<br /><br /> function </span><span style="color: #0000BB">run</span><span style="color: #007700">() {<br /> </span><span style="color: #0000BB">$ar </span><span style="color: #007700">= array();<br /> </span><span style="color: #0000BB">$this</span><span style="color: #007700">-></span><span style="color: #0000BB">test_ref</span><span style="color: #007700">(</span><span style="color: #0000BB">$ar</span><span style="color: #007700">[]);<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$ar</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">$this</span><span style="color: #007700">-></span><span style="color: #0000BB">test</span><span style="color: #007700">(</span><span style="color: #0000BB">$ar</span><span style="color: #007700">[]);<br /> }<br />}<br /><br /></span><span style="color: #0000BB">$o </span><span style="color: #007700">= new </span><span style="color: #0000BB">XmlTest</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$o</span><span style="color: #007700">-></span><span style="color: #0000BB">run</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?></span>
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<p class="para">
This should always have thrown a fatal <strong><code>E_ERROR</code></strong>,
because [] cannot be used for reading in PHP. It is invalid code in
PHP 4.4.2 and PHP 5.0.5 upward.
</p>
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