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Simple assertion handler

/ Published in: PHP
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This is a useful debugging utility in lieu of Exception objects

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  1. <?php
  2. //         FILE:    assertion.php
  3. //  DESCRIPTION:    Handles assertions where the Exception object is not used
  4. //  ---------------------------------
  5. //  Mon Mar 03 21:36:54 EST 2008
  6.  
  7. /**
  8.  * USAGE:
  9.  * assert(string code)
  10.  * The code should be passed as a string similar to the way eval() is invoked.
  11.  */
  12.  
  13. assert_options(ASSERT_CALLBACK, 'assertion_handler');
  14. assert_options(ASSERT_ACTIVE, 1);
  15. assert_options(ASSERT_WARNING, 0);
  16. assert_options(ASSERT_QUIET_EVAL, 1);
  17.  
  18. function assertion_handler($file, $line, $code)
  19. {
  20.     if (true === DEBUG_MODE) {
  21.  
  22.         $msg = <<<EOT
  23. <pre style="background-color:#FF0000;color:#FFFFFF;font-weight:bold;padding:8px;">
  24. FAILED ASSERTION
  25. File: {$file}
  26. Line: {$line}
  27. Code: {$code}
  28. </pre>
  29. EOT;
  30.  
  31.         print $msg;
  32.     }
  33. }
  34. ?>

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