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run code in 500+ PHP versions simultaneously
<?php $str = "test.string.1.sometext.more"; $startingOffset = 5; $pattern = '~^.{' . $startingOffset . '}[^.]*\K\.~'; $replacement = 2; echo preg_replace($pattern, $replacement, $str); echo "\n---\n"; $offset = strpos($str, '.', $startingOffset); if ($offset !== false) { $str[$offset] = $replacement; } echo $str;
Output for 4.4.9, 5.2.4 - 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 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
test.string21.sometext.more --- test.string21.sometext.more
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.8, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.3
test.string.1.sometext.more --- test.string21.sometext.more
preferences:
108.63 ms | 2697 KiB | 4 Q