3v4l.org

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<?php $haystack = 'this is a verygood school of sachin'; $pattern = 'sch'; echo '<html><body>'; for ($i = strlen($haystack); $i > 0; $i--) { echo $i . ' '; } echo '<br>'; for ($i = 0; $i < strlen($haystack); $i++) { echo $haystack[$i] . ' '; } echo '</body></html>'; $match = strstr($haystack, $pattern); $result = strlen($match) - strlen($pattern); echo $result; ?>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 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 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<html><body>35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 <br>t h i s i s a v e r y g o o d s c h o o l o f s a c h i n </body></html>13

preferences:
233.55 ms | 406 KiB | 370 Q