PHP Syntax Error with unexpected 'true' (T_STRING), expecting ')' : <p>I get this error when using php code</p>

<blockquote>
  <p>PHP Syntax Check: Parse error: syntax error, unexpected 'true' (T_STRING), expecting ')' in your code on line 3568</p>
</blockquote>

<p>please help me i dont understand whats wrong here php code line</p>

<pre><code>static $true  = array('1xtracts'true', 'True', 'TRUExtracts'y', 'Yxtracts'yes', 'Yes', 'YESxtracts'on', 'On', 'ONxtract);
</code></pre>
