3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'Hello, World!!!'; $res1 = preg_replace('/ll/', '?', $str); var_dump($res1); $res2 = preg_replace_callback('/ll/', function ($matches) {return '?';}, $str); var_dump($res2); function test($arg[0]) { var_dump($arg); } test($str);

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)
5.4.350.0200.04318.99
5.4.340.0090.04512.03
5.4.320.0140.06912.52
5.4.310.0110.04112.52
5.4.300.0070.05012.52
5.4.290.0130.04612.52
5.4.280.0080.04712.41
5.4.270.0050.05112.41
5.4.260.0050.05312.41
5.4.250.0090.03612.41
5.4.240.0070.04612.41
5.4.230.0050.06212.41
5.4.220.0100.05512.40
5.4.210.0090.04012.41
5.4.200.0090.04512.41
5.4.190.0050.04312.40
5.4.180.0070.04112.40
5.4.170.0080.03712.41
5.4.160.0100.03712.40
5.4.150.0060.03912.39
5.4.140.0140.04912.09
5.4.130.0080.04212.07
5.4.120.0130.04312.03
5.4.110.0110.03912.03
5.4.100.0080.04112.03
5.4.90.0080.06212.04
5.4.80.0150.05012.03
5.4.70.0060.05112.03
5.4.60.0080.04312.03
5.4.50.0090.04212.03
5.4.40.0110.04012.02
5.4.30.0220.03312.02
5.4.20.0130.04312.01
5.4.10.0100.04612.01
5.4.00.0130.04411.50
5.3.290.0090.05412.80
5.3.280.0120.04412.71
5.3.270.0100.04912.72
5.3.260.0070.04012.72
5.3.250.0090.04212.72
5.3.240.0110.04512.72
5.3.230.0160.04412.71
5.3.220.0160.03912.68
5.3.210.0070.04512.68
5.3.200.0120.03712.68
5.3.190.0060.04712.67
5.3.180.0080.04112.67
5.3.170.0150.04412.67
5.3.160.0110.04412.67
5.3.150.0060.04412.68
5.3.140.0090.06212.66
5.3.130.0110.05612.66
5.3.120.0140.04912.66
5.3.110.0160.05312.66
5.3.100.0080.05912.13
5.3.90.0110.05112.11
5.3.80.0130.04812.10
5.3.70.0080.05012.11
5.3.60.0130.05812.09
5.3.50.0080.05212.03
5.3.40.0090.05312.03
5.3.30.0090.05011.99
5.3.20.0150.04011.77
5.3.10.0120.04611.73
5.3.00.0100.05511.73
5.2.170.0110.0479.18
5.2.160.0080.0359.19
5.2.150.0060.0529.18
5.2.140.0140.0469.18
5.2.130.0100.0419.14
5.2.120.0110.0379.14
5.2.110.0110.0379.15
5.2.100.0080.0399.14
5.2.90.0040.0449.14
5.2.80.0040.0509.14
5.2.70.0100.0399.14
5.2.60.0110.0519.09
5.2.50.0300.1109.06
5.2.40.0070.0479.04
5.2.30.0090.0679.02
5.2.20.0090.0629.01
5.2.10.0060.0368.93
5.2.00.0080.0408.78
5.1.60.0080.0398.07
5.1.50.0160.0788.07
5.1.40.0090.0598.05
5.1.30.0070.0348.40
5.1.20.0040.0398.42
5.1.10.0050.0408.14
5.1.00.0150.0408.14
5.0.50.0030.0316.63
5.0.40.0080.0256.48
5.0.30.0090.0386.30
5.0.20.0030.0316.26
5.0.10.0070.0286.25
5.0.00.0050.0416.23
4.4.90.0040.0204.78
4.4.80.0030.0194.75
4.4.70.0060.0214.76
4.4.60.0090.0314.76
4.4.50.0060.0364.77
4.4.40.0020.0334.71
4.4.30.0060.0204.76
4.4.20.0040.0224.84
4.4.10.0040.0214.85
4.4.00.0050.0314.76
4.3.110.0010.0194.67
4.3.100.0050.0144.66
4.3.90.0030.0214.63
4.3.80.0060.0274.58
4.3.70.0060.0184.63
4.3.60.0030.0204.63
4.3.50.0030.0224.63
4.3.40.0050.0294.54
4.3.30.0040.0203.29
4.3.20.0020.0213.25
4.3.10.0020.0203.22
4.3.00.0130.0237.15

preferences:
146.73 ms | 1394 KiB | 7 Q