3v4l.org

run code in 300+ PHP versions simultaneously
<?php if( true OR false ) echo "1st true\n"; // OK if( false OR true ) echo "2nd true\n"; // OK $bar = true; $foo = false; $wat = $bar OR $foo; echo $wat ."\n"; // OK: 1 if( $wat ) echo "wat = T|F\n"; $wat = $foo OR $bar; echo $wat ."\n"; // WAT? doesn't print? if( false OR $bar ) echo "F | bar\n"; // OK if( $foo OR $bar ) echo "foo | bar\n"; // OK if( $wat ) echo "wat = F|T\n"; // WAT? doesn't print? var_dump( false OR true ); // OK: bool(true) $wat = false OR true; var_dump( $wat ); // WAT? bool(false)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 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 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.14
1st true 2nd true 1 wat = T|F F | bar foo | bar bool(true) bool(false)
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/tRieg on line 20
Process exited with code 255.
preferences:
61.17 ms | 407 KiB | 5 Q