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<?php // Everything you enter here will be executed by our servers. Try it! $str = "1_1341383124_Photo /Jul \04, 1 22 02 AM_20130724204332.png"; echo $a = strrpos($str,"."); $str2 = substr($str,0,$a); $str3 = preg_replace("/[-, :;.\/]/","_",$str2); $str3 = preg_replace("/[_]+/","_",$str3); echo $str3;
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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 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
521_1341383124_Photo_Jul__1_22_02_AM_20130724204332

preferences:
258.16 ms | 406 KiB | 314 Q