3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "resource_id_heeelp_lala_klopsiki"; preg_match_all('/(_[\w]{1})/', $string, $matches); if(!empty($matches[0])){ foreach($matches[0] as $key){ $result = substr($key, 0, 1); //result is c $result1=str_replace($result,'',$key);//now your result1 is apitalize $result2=ucfirst($result1); //now result2 is Apitalize $finalresult=$result.$result2; ///now your finalresult is cApitalize preg_replace($key, $finalresult, $string); } print $string;

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
5.4.280.0070.05112.33
5.4.270.0110.04712.33
5.4.260.0100.05012.33
5.4.250.0130.05512.33
5.4.240.0120.05512.33
5.4.230.0120.11312.32
5.4.220.0060.05312.32
5.4.210.0120.04912.32
5.4.200.0110.05312.32
5.4.190.0060.05512.32
5.4.180.0070.05312.32
5.4.170.0120.05312.33
5.4.160.0110.04112.32
5.4.150.0110.04112.32
5.4.140.0120.04212.01
5.4.130.0140.05211.99
5.4.120.0120.04711.95
5.4.110.0060.05011.95
5.4.100.0080.04011.95
5.4.90.0110.04911.95
5.4.80.0100.04011.95
5.4.70.0070.04411.95
5.4.60.0060.04311.95
5.4.50.0080.04211.95
5.4.40.0080.03811.93
5.4.30.0130.04611.93
5.4.20.0130.04311.93
5.4.10.0070.04611.94
5.4.00.0060.04511.42
5.3.280.0080.04712.71
5.3.270.0140.04912.73
5.3.260.0140.04912.72
5.3.250.0070.04612.72
5.3.240.0090.05112.72
5.3.230.0090.05312.71
5.3.220.0120.05512.68
5.3.210.0120.09412.68
5.3.200.0110.05912.68
5.3.190.0140.04912.68
5.3.180.0140.05112.68
5.3.170.0120.05912.67
5.3.160.0110.05512.68
5.3.150.0080.05212.67
5.3.140.0090.05112.66
5.3.130.0080.06912.66
5.3.120.0100.04912.66
5.3.110.0120.06612.66
5.3.100.0120.03712.12
5.3.90.0040.04312.08
5.3.80.0090.05112.08
5.3.70.0140.04712.07
5.3.60.0080.07012.06
5.3.50.0120.04812.00
5.3.40.0140.07712.00
5.3.30.0260.13511.94
5.3.20.0080.04511.70
5.3.10.0090.03611.67
5.3.00.0080.03811.66

preferences:
139.43 ms | 1386 KiB | 7 Q