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<?php $s = "01001010101101111011101001010100010101101010101010101101101010010110110110"; $n = 10; for( $i = $best = $bestCount = 0; ( ($count = @substr_count( $s, 1, $i, $n )) > $bestCount && (($best = $i) && ($bestCount = $count)) ) || $i < strlen($s); $i++ ); var_dump($i,$best,$bestCount);
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 ValueError: substr_count(): Argument #4 ($length) must be contained in argument #1 ($haystack) in /in/uJd9E:6 Stack trace: #0 /in/uJd9E(6): substr_count('010010101011011...', '1', 65, 10) #1 {main} thrown in /in/uJd9E on line 6
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, 5.5.24 - 5.5.35, 5.6.8 - 5.6.21, 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
int(74) int(10) int(8)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5
int(74) int(0) int(0)

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235.74 ms | 402 KiB | 312 Q