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run code in 300+ PHP versions simultaneously
<?= @$_[]=@!+_; $__=@${_}>>$_;$_[]=$__;$_[]=@_;$_[((++$__)+($__++ ))].=$_; $_[]=++$__; $_[]=$_[--$__][$__>>$__];$_[$__].=(($__+$__)+ $_[$__-$__]).($__+$__+$__)+$_[$__-$__]; $_[$__+$__] =($_[$__][$__>>$__]).($_[$__][$__]^$_[$__][($__<<$__)-$__] ); $_[$__+$__] .=($_[$__][($__<<$__)-($__/$__)])^($_[$__][$__] ); $_[$__+$__] .=($_[$__][$__+$__])^$_[$__][($__<<$__)-$__ ]; $_=$ $_[$__+ $__] ;$_[@-_]($_[@!+_] );
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Undefined constant "_" in /in/jroLE:1 Stack trace: #0 {main} thrown in /in/jroLE on line 1
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Deprecated: The behavior of unparenthesized expressions containing both '.' and '+'/'-' will change in PHP 8: '+'/'-' will take a higher precedence in /in/jroLE on line 2 1 Notice: Array to string conversion in /in/jroLE on line 1 Notice: Array to string conversion in /in/jroLE on line 7 Notice: Undefined variable: Array in /in/jroLE on line 7 Notice: Trying to access array offset on value of type null in /in/jroLE on line 7 Notice: Trying to access array offset on value of type null in /in/jroLE on line 7 Fatal error: Uncaught Error: Function name must be a string in /in/jroLE:7 Stack trace: #0 {main} thrown in /in/jroLE on line 7
Process exited with code 255.
Output for 7.3.32 - 7.3.33
1 Fatal error: Uncaught Error: Function name must be a string in /in/jroLE:7 Stack trace: #0 {main} thrown in /in/jroLE on line 7
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31
1 Notice: Array to string conversion in /in/jroLE on line 1 Notice: Array to string conversion in /in/jroLE on line 7 Notice: Undefined variable: Array in /in/jroLE on line 7 Fatal error: Uncaught Error: Function name must be a string in /in/jroLE:7 Stack trace: #0 {main} thrown in /in/jroLE on line 7
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
1 Notice: Array to string conversion in /in/jroLE on line 1 Notice: Undefined offset: 0 in /in/jroLE on line 7 Fatal error: Function name must be a string in /in/jroLE on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
<?= @$_[]=@!+_; $__=@${_}>>$_;$_[]=$__;$_[]=@_;$_[((++$__)+($__++ ))].=$_; $_[]=++$__; $_[]=$_[--$__][$__>>$__];$_[$__].=(($__+$__)+ $_[$__-$__]).($__+$__+$__)+$_[$__-$__]; $_[$__+$__] =($_[$__][$__>>$__]).($_[$__][$__]^$_[$__][($__<<$__)-$__] ); $_[$__+$__] .=($_[$__][($__<<$__)-($__/$__)])^($_[$__][$__] ); $_[$__+$__] .=($_[$__][$__+$__])^$_[$__][($__<<$__)-$__ ]; $_=$ $_[$__+ $__] ;$_[@-_]($_[@!+_] );

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