3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo($foo = 'foo', $bar) {} function str($value) { return $value === true ? 'true' : ($value === false ? 'false' : ($value === null ? 'null' : '' . $value)); } function dump_function($fn) { $rf = new ReflectionFunction($fn); $fmt = "%-10s %-5s %-5s %s\n"; vprintf($fmt, array('name', 'opt?', 'def?', 'value')); foreach ($rf->getParameters() as $param) { $p = $param; $dv = $p->isDefaultValueAvailable() ? str($p->getDefaultValue()) : '-'; printf($fmt, $param->getName(), str($p->isOptional()), str($p->isDefaultValueAvailable()), $dv); } } dump_function('foo');
Output for 8.4.1 - 8.4.14
Deprecated: foo(): Optional parameter $foo declared before required parameter $bar is implicitly treated as a required parameter in /in/qgbh7 on line 2 name opt? def? value foo false false - bar false false -
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27
Deprecated: Optional parameter $foo declared before required parameter $bar is implicitly treated as a required parameter in /in/qgbh7 on line 2 name opt? def? value foo false false - bar false false -
Output for 8.0.0 - 8.0.30
Deprecated: Required parameter $bar follows optional parameter $foo in /in/qgbh7 on line 2 name opt? def? value foo false true foo bar false false -
Output for 5.3.17 - 5.3.29, 5.4.7 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
name opt? def? value foo false true foo bar false false -
Output for 5.0.3 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.15, 5.4.0 - 5.4.6
name opt? def? value foo false false - bar false false -
Output for 5.3.16
name opt? def? value Fatal error: Uncaught exception 'ReflectionException' with message 'Parameter is not optional' in /in/qgbh7:13 Stack trace: #0 /in/qgbh7(13): ReflectionParameter->getDefaultValue() #1 /in/qgbh7(18): dump_function('foo') #2 {main} thrown in /in/qgbh7 on line 13
Process exited with code 255.
Output for 5.0.0 - 5.0.2
name opt? def? value Fatal error: Call to undefined method ReflectionParameter::isDefaultValueAvailable() in /in/qgbh7 on line 13
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: reflectionfunction in /in/qgbh7 on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: reflectionfunction in /in/qgbh7 on line 8
preferences:
109.05 ms | 415 KiB | 5 Q