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<?php function floorDiff(string $input): int { $positiveMatches = preg_match_all ('/\(/', $input); $negativeMatches = preg_match_all ('/\)/', $input); return $positiveMatches + $negativeMatches; } assert(floorDiff('(') === 1); assert(floorDiff(')') === -1); assert(floorDiff('()') === 0); assert(floorDiff('(()))))') === -3); var_dump (floorDiff('(()))))') );
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 AssertionError: assert(floorDiff(')') === -1) in /in/Yv1Y7:13 Stack trace: #0 /in/Yv1Y7(13): assert(false, 'assert(floorDif...') #1 {main} thrown in /in/Yv1Y7 on line 13
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, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Warning: assert(): assert(floorDiff(')') === -1) failed in /in/Yv1Y7 on line 13 Warning: assert(): assert(floorDiff('()') === 0) failed in /in/Yv1Y7 on line 14 Warning: assert(): assert(floorDiff('(()))))') === -3) failed in /in/Yv1Y7 on line 15 int(7)
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Parse error: syntax error, unexpected ':', expecting '{' in /in/Yv1Y7 on line 3
Process exited with code 255.
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