mfmans / php-eval

A simple PHP extension for hooking eval()

php-eval

This is a simple PHP extension for hooking eval().

Requirements

• PHP 7 (recommend)
• PHP 5.6.x (untested)

Building and installing on Windows

• Download source code file php_eval.c
• Download PHP source code and prepare your PHP building environment (https://wiki.php.net/internals/windows/stepbystepbuild)
• Compile php_eval.c and build a DLL file with your Visual C++
• Copy the DLL file into PHP extension dir and install it by modifying php.ini
• Restart your server

Usage

Example:

<?php

/* write your code in __eval() */
function __eval($code, $file) {
  echo "eval() @ {$file}:\n{$code}\n\n";
  // you can return FALSE to prevent this eval()
  return false;
  // or you can return a string to replace $code for executing
  return 'echo 2;';
  // or you can return nothing to executing $code next
}

eval('echo 1;');

License

MIT