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((int)$arg) { var_dump($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)
5.4.350.0130.05019.06
5.4.340.0090.03912.03
5.4.320.0120.04012.52
5.4.310.0090.04512.52
5.4.300.0090.04312.52
5.4.290.0060.04612.52
5.4.280.0060.04512.41
5.4.270.0090.04312.41
5.4.260.0100.04512.41
5.4.250.0110.04712.41
5.4.240.0100.04912.41
5.4.230.0120.05012.40
5.4.220.0090.05212.41
5.4.210.0080.04212.40
5.4.200.0100.04912.40
5.4.190.0110.03412.40
5.4.180.0070.04112.40
5.4.170.0080.04512.40
5.4.160.0070.03812.40
5.4.150.0070.03812.39
5.4.140.0050.04612.09
5.4.130.0050.04312.07
5.4.120.0090.04212.03
5.4.110.0080.04912.03
5.4.100.0090.04212.03
5.4.90.0080.04712.03
5.4.80.0080.04212.03
5.4.70.0090.04812.03
5.4.60.0080.05012.03
5.4.50.0120.03412.02
5.4.40.0050.03612.02
5.4.30.0090.03812.01
5.4.20.0070.03912.01
5.4.10.0090.04012.01
5.4.00.0080.04611.50
5.3.290.0080.05312.80
5.3.280.0060.05412.71
5.3.270.0080.04912.72
5.3.260.0070.04712.72
5.3.250.0120.04412.72
5.3.240.0110.05212.72
5.3.230.0090.04412.71
5.3.220.0100.04712.68
5.3.210.0080.04612.68
5.3.200.0060.04612.68
5.3.190.0090.04212.68
5.3.180.0100.04512.67
5.3.170.0090.04712.67
5.3.160.0070.04312.67
5.3.150.0140.04212.68
5.3.140.0110.04412.66
5.3.130.0080.04312.65
5.3.120.0060.04812.66
5.3.110.0080.04512.66
5.3.100.0090.04112.13
5.3.90.0090.04212.11
5.3.80.0070.04112.10
5.3.70.0070.04512.10
5.3.60.0100.04212.08
5.3.50.0090.04112.03
5.3.40.0100.04312.03
5.3.30.0070.04411.99
5.3.20.0090.04311.78
5.3.10.0100.03911.73
5.3.00.0070.04611.73
5.2.170.0070.0369.19
5.2.160.0050.0329.19
5.2.150.0060.0449.19
5.2.140.0070.0389.18
5.2.130.0070.0339.14
5.2.120.0090.0309.14
5.2.110.0100.0309.15
5.2.100.0090.0369.14
5.2.90.0080.0369.14
5.2.80.0090.0349.13
5.2.70.0100.0389.14
5.2.60.0080.0409.09
5.2.50.0050.0469.06
5.2.40.0070.0359.04
5.2.30.0090.0329.01
5.2.20.0070.0349.00
5.2.10.0050.0348.92
5.2.00.0070.0348.78
5.1.60.0040.0268.07
5.1.50.0040.0318.07
5.1.40.0030.0348.05
5.1.30.0080.0268.40
5.1.20.0050.0328.42
5.1.10.0050.0278.15
5.1.00.0040.0288.14
5.0.50.0020.0236.62
5.0.40.0070.0206.48
5.0.30.0060.0336.30
5.0.20.0020.0256.26
5.0.10.0040.0236.24
5.0.00.0040.0346.24
4.4.90.0040.0194.78
4.4.80.0040.0184.75
4.4.70.0040.0204.75
4.4.60.0040.0184.76
4.4.50.0050.0184.77
4.4.40.0050.0294.71
4.4.30.0040.0184.76
4.4.20.0040.0194.85
4.4.10.0040.0194.85
4.4.00.0040.0274.76
4.3.110.0050.0214.67
4.3.100.0030.0164.67
4.3.90.0040.0144.63
4.3.80.0040.0304.58
4.3.70.0020.0194.63
4.3.60.0020.0204.63
4.3.50.0040.0204.63
4.3.40.0040.0264.53
4.3.30.0030.0193.28
4.3.20.0040.0173.26
4.3.10.0020.0163.22
4.3.00.0100.0237.15

preferences:
139.54 ms | 1394 KiB | 7 Q