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run code in 300+ PHP versions simultaneously
<?php class A { function b() { return $this->a; } function __get($method) { $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS); if(isset($trace[1]) and $trace[1]['class'] == 'A' and $trace[1]['function']) { return 'inside'; } else { return 'outside'; } } } $a = new A; echo $a->a; echo PHP_EOL; echo $a->b();
Output for 5.3.6 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
outside inside
Output for 5.2.5 - 5.2.17, 5.3.0 - 5.3.5
Notice: Use of undefined constant DEBUG_BACKTRACE_IGNORE_ARGS - assumed 'DEBUG_BACKTRACE_IGNORE_ARGS' in /in/0FT7B on line 12 outside Notice: Use of undefined constant DEBUG_BACKTRACE_IGNORE_ARGS - assumed 'DEBUG_BACKTRACE_IGNORE_ARGS' in /in/0FT7B on line 12 inside
Output for 5.0.2 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.4
Notice: Use of undefined constant DEBUG_BACKTRACE_IGNORE_ARGS - assumed 'DEBUG_BACKTRACE_IGNORE_ARGS' in /in/0FT7B on line 12 Warning: Wrong parameter count for debug_backtrace() in /in/0FT7B on line 12 outside Notice: Use of undefined constant DEBUG_BACKTRACE_IGNORE_ARGS - assumed 'DEBUG_BACKTRACE_IGNORE_ARGS' in /in/0FT7B on line 12 Warning: Wrong parameter count for debug_backtrace() in /in/0FT7B on line 12 outside
Output for 5.0.0 - 5.0.1
Notice: Use of undefined constant DEBUG_BACKTRACE_IGNORE_ARGS - assumed 'DEBUG_BACKTRACE_IGNORE_ARGS' in /in/0FT7B on line 12 Warning: Wrong parameter count for debug_backtrace() in /in/0FT7B on line 12 outside Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/0FT7B on line 26 PHP_EOL Notice: Use of undefined constant DEBUG_BACKTRACE_IGNORE_ARGS - assumed 'DEBUG_BACKTRACE_IGNORE_ARGS' in /in/0FT7B on line 12 Warning: Wrong parameter count for debug_backtrace() in /in/0FT7B on line 12 outside
Output for 4.3.10 - 4.3.11, 4.4.0 - 4.4.9
Notice: Undefined property: a in /in/0FT7B on line 25 Notice: Undefined property: a in /in/0FT7B on line 7
Output for 4.3.0 - 4.3.9
Notice: Undefined property: a in /in/0FT7B on line 25 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/0FT7B on line 26 PHP_EOL Notice: Undefined property: a in /in/0FT7B on line 7
preferences:
332.63 ms | 402 KiB | 310 Q