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run code in 500+ PHP versions simultaneously
<?php var_dump(mb_strrpos("\xA9\xA9X", "\xA9", -2, "ISO-8859-1")); var_dump(strrpos("\xA9\xA9X", "\xA9", -2));
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
Warning: Wrong parameter count for mb_strrpos() in /in/MpZOD on line 3 NULL Warning: Wrong parameter count for strrpos() in /in/MpZOD on line 4 NULL
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Warning: mb_strrpos() expects at most 3 parameters, 4 given in /in/MpZOD on line 3 bool(false) int(1)
Output for 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, 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, 8.2.7 - 8.2.34, 8.5.10 - 8.5.11
int(1) int(1)
Output for 8.2.0 - 8.2.6
Output for 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.9
int(0) int(1)

preferences:
43.92 ms | 1172 KiB | 19 Q