3v4l.org

run code in 500+ PHP versions simultaneously
<?php function withAssignment(float $f): float { if ($f === 0.0) { $f = 0.0; // reported as assign.redundant } return $f; } function withoutAssignment(float $f): float { if ($f === 0.0) { } return $f; } function g(): float { $x = -0.0; $x = 0.0; // reported as assign.redundant return $x; } foreach (['withAssignment', 'withoutAssignment', 'g'] as $fn) { $v = $fn === 'g' ? g() : $fn(-0.0); printf( "%-18s (string): %-3s var_export: %-5s json_encode: %-3s fdiv(1, v): %s\n", $fn, (string) $v, var_export($v, true), json_encode($v), var_export(fdiv(1, $v), true), ); }
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/NdkoE on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/NdkoE on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting ')' in /in/NdkoE on line 3
Process exited with code 255.
Output for 5.1.0 - 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
Parse error: syntax error, unexpected ':', expecting '{' in /in/NdkoE on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected ':', expecting '{' in /in/NdkoE on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34
Parse error: syntax error, unexpected ')' in /in/NdkoE on line 31
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
withAssignment (string): 0 var_export: 0.0 json_encode: 0 fdiv(1, v): INF withoutAssignment (string): -0 var_export: -0.0 json_encode: -0 fdiv(1, v): -INF g (string): 0 var_export: 0.0 json_encode: 0 fdiv(1, v): INF
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Call to undefined function fdiv() in /in/NdkoE:30 Stack trace: #0 {main} thrown in /in/NdkoE on line 30
Process exited with code 255.
preferences:
37.48 ms | 1164 KiB | 23 Q