3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $data = array( 10, 123 ); if (version_compare(PHP_VERSION, "5.6", ">=")) { $buf = eval("return pack('N*', ...$data);"); } else { $buf = call_user_func_array("pack", array_merge(array("N*"), $data)); } $valArray = unpack( "N*", $buf ); while( list( $key, $val ) = each( $valArray ) ) { echo "$key -> $val\n"; }
Output for 7.0.0 - 7.1.0
Notice: Array to string conversion in /in/9oTKi on line 5 Parse error: syntax error, unexpected ')', expecting '(' in /in/9oTKi(5) : eval()'d code on line 1
Process exited with code 255.
Output for hhvm-3.12.0
Notice: Array to string conversion in /in/9oTKi on line 5 Fatal error: syntax error, unexpected ')', expecting '(' in /in/9oTKi(5)(9a4ad8f9bf0c6f3e1b6f002105476af5) : eval()'d code on line 1
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.6.7 - 5.6.28
Notice: Array to string conversion in /in/9oTKi on line 5 Parse error: syntax error, unexpected ')', expecting '(' in /in/9oTKi(5) : eval()'d code on line 1
Output for 4.3.0 - 5.5.35
1 -> 10 2 -> 123