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  1. PO
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    <p>Thanks Greg and Dave for the feedback. Wasn't quite what I was looking for, but I decided to put a bit of time into researching it and came up with this quick and dirty solution:</p> <pre><code>&lt;?php $functions = array(); $path = "/path/to/my/php/project"; define_dir($path, $functions); reference_dir($path, $functions); echo "&lt;table&gt;" . "&lt;tr&gt;" . "&lt;th&gt;Name&lt;/th&gt;" . "&lt;th&gt;Defined&lt;/th&gt;" . "&lt;th&gt;Referenced&lt;/th&gt;" . "&lt;/tr&gt;"; foreach ($functions as $name =&gt; $value) { echo "&lt;tr&gt;" . "&lt;td&gt;" . htmlentities($name) . "&lt;/td&gt;" . "&lt;td&gt;" . (isset($value[0]) ? count($value[0]) : "-") . "&lt;/td&gt;" . "&lt;td&gt;" . (isset($value[1]) ? count($value[1]) : "-") . "&lt;/td&gt;" . "&lt;/tr&gt;"; } echo "&lt;/table&gt;"; function define_dir($path, &amp;$functions) { if ($dir = opendir($path)) { while (($file = readdir($dir)) !== false) { if (substr($file, 0, 1) == ".") continue; if (is_dir($path . "/" . $file)) { define_dir($path . "/" . $file, $functions); } else { if (substr($file, - 4, 4) != ".php") continue; define_file($path . "/" . $file, $functions); } } } } function define_file($path, &amp;$functions) { $tokens = token_get_all(file_get_contents($path)); for ($i = 0; $i &lt; count($tokens); $i++) { $token = $tokens[$i]; if (is_array($token)) { if ($token[0] != T_FUNCTION) continue; $i++; $token = $tokens[$i]; if ($token[0] != T_WHITESPACE) die("T_WHITESPACE"); $i++; $token = $tokens[$i]; if ($token[0] != T_STRING) die("T_STRING"); $functions[$token[1]][0][] = array($path, $token[2]); } } } function reference_dir($path, &amp;$functions) { if ($dir = opendir($path)) { while (($file = readdir($dir)) !== false) { if (substr($file, 0, 1) == ".") continue; if (is_dir($path . "/" . $file)) { reference_dir($path . "/" . $file, $functions); } else { if (substr($file, - 4, 4) != ".php") continue; reference_file($path . "/" . $file, $functions); } } } } function reference_file($path, &amp;$functions) { $tokens = token_get_all(file_get_contents($path)); for ($i = 0; $i &lt; count($tokens); $i++) { $token = $tokens[$i]; if (is_array($token)) { if ($token[0] != T_STRING) continue; if ($tokens[$i + 1] != "(") continue; $functions[$token[1]][1][] = array($path, $token[2]); } } } ?&gt; </code></pre> <p>I'll probably spend some more time on it so I can quickly find the files and line numbers of the function definitions and references; this information is being gathered, just not displayed.</p>
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    1. POHow can I find unused functions in a PHP project
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    1. USStacey Richards
    1. USStacey Richards
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    1. POHow can I find unused functions in a PHP project
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    1. COThis solution is good if you never use `call_user_func()` or `call_user_func_array()` or `$var()`
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      1. UScalebbrown
 

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