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  1. <?php
  2.  
  3. $disabled_funcs = [];
  4.  
  5. // original code
  6. function func ($msg) {
  7.   echo "$msg\n";
  8. }
  9.  
  10. //The wrapped one:
  11.  
  12. function _func () {
  13.   global $disabled_funcs;
  14.   $func = substr (__FUNCTION__, 1);
  15.   if (isset($disabled_funcs[$func]))
  16.     throw new Exception ("Function $func is disabled.");
  17.   return call_user_func_array ($func, func_get_args());
  18. }
  19.  
  20. function disable_func ($name) {
  21. 	global $disabled_funcs;
  22. 	$disabled_funcs[$name] = 1;
  23. }
  24.  
  25. function enable_func ($name) {
  26. 	global $disabled_funcs;
  27. 	if (isset($disabled_funcs[$name]))
  28. 		unset ($disabled_funcs[$name]);
  29. }
  30.  
  31. //Call the function:
  32. _func ("Func not disabled.");
  33. disable_func ("func");
  34. try {
  35. 	_func ("Exception will be raised, this will not be displayed");
  36. } catch (Exception $e) {
  37. 	echo $e->getMessage() . PHP_EOL;
  38. }
  39. enable_func ("func");
  40. _func ("Func enabled");
  41.  
  42.  
Success #stdin #stdout 0.03s 52480KB
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stdin
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Standard input is empty
stdout
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Func not disabled.
Function func is disabled.
Func enabled
https://ideone.com/yQaAtq
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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