3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "ab"; $b = "cd"; $c = $a . $b; strlen($c); str_pad($c, 2);

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)
8.3.70.0120.00316.58
8.3.60.0090.00618.43
8.3.50.0100.00718.16
8.3.40.0040.01118.68
8.3.30.0110.00418.59
8.3.20.0050.00321.64
8.3.10.0050.00321.64
8.3.00.0040.00421.77
8.2.190.0070.00716.58
8.2.180.0120.00625.92
8.2.170.0090.00918.82
8.2.160.0120.00322.96
8.2.150.0030.00625.66
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0040.00421.04
8.2.110.0060.00321.09
8.2.100.0060.00619.45
8.2.90.0040.00419.21
8.2.80.0040.00418.66
8.2.70.0040.00417.50
8.2.60.0030.00517.50
8.2.50.0040.00717.63
8.2.40.0040.00419.16
8.2.30.0040.00420.49
8.2.20.0030.00617.93
8.2.10.0080.00019.47
8.2.00.0030.00418.09
8.1.280.0110.00725.92
8.1.270.0040.00424.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0120.00622.13
8.1.230.0040.00721.04
8.1.220.0040.00418.69
8.1.210.0030.00618.77
8.1.200.0040.00417.22
8.1.190.0000.00817.00
8.1.180.0090.00018.10
8.1.170.0040.00418.37
8.1.160.0050.00318.69
8.1.150.0000.00718.72
8.1.140.0000.00719.00
8.1.130.0050.00320.14
8.1.120.0000.00817.40
8.1.110.0030.00617.38
8.1.100.0060.00317.43
8.1.90.0040.00417.27
8.1.80.0040.00417.40
8.1.70.0040.00417.35
8.1.60.0020.00517.50
8.1.50.0040.00417.43
8.1.40.0030.00517.43
8.1.30.0050.00317.67
8.1.20.0040.00417.60
8.1.10.0040.00417.38
8.1.00.0000.00817.46
8.0.300.0070.00018.77
8.0.290.0030.00716.63
8.0.280.0000.00718.43
8.0.270.0070.00016.80
8.0.260.0030.00618.29
8.0.250.0030.00316.93
8.0.240.0030.00316.81
8.0.230.0030.00316.99
8.0.220.0000.00616.77
8.0.210.0000.00716.85
8.0.200.0040.00416.84
8.0.190.0040.00416.81
8.0.180.0000.00716.85
8.0.170.0060.00316.94
8.0.160.0060.00316.85
8.0.150.0040.00416.86
8.0.140.0030.00516.84
8.0.130.0030.00313.18
8.0.120.0000.00816.82
8.0.110.0040.00416.82
8.0.100.0000.00716.77
8.0.90.0030.00316.77
8.0.80.0040.01116.87
8.0.70.0040.00416.87
8.0.60.0040.00416.73
8.0.50.0000.00716.94
8.0.30.0100.00817.01
8.0.20.0160.00717.01
8.0.10.0050.00316.88
8.0.00.0090.00916.64
7.4.330.0000.00516.63
7.4.320.0030.00316.57
7.4.300.0000.00616.43
7.4.290.0000.00716.52
7.4.280.0000.00816.56
7.4.270.0040.00716.55
7.4.260.0000.00716.48
7.4.250.0040.00416.38
7.4.240.0000.00716.35
7.4.230.0070.00016.34
7.4.220.0000.00716.42
7.4.210.0080.00816.51
7.4.200.0000.00716.32
7.4.160.0090.00616.45
7.4.140.0110.00717.86
7.4.130.0060.01616.48
7.4.120.0090.00916.52
7.4.110.0040.01416.46
7.4.100.0070.01316.39
7.4.90.0090.00616.27
7.4.80.0140.00319.39
7.4.70.0140.00316.43
7.4.60.0080.00816.51
7.4.50.0070.00716.21
7.4.40.0090.01216.50
7.4.10.0040.01415.05
7.4.00.0070.00714.81
7.3.330.0060.00013.12
7.3.320.0030.00313.17
7.3.310.0000.00716.09
7.3.300.0050.00216.19
7.3.290.0040.00416.24
7.3.280.0110.01016.23
7.3.260.0120.00816.26
7.3.240.0090.01016.27
7.3.230.0130.00616.24
7.3.210.0160.02216.20
7.3.200.0100.00716.36
7.3.190.0130.01016.21
7.3.180.0130.00616.26
7.3.170.0090.00616.38
7.3.160.0130.00516.16
7.3.130.0000.01715.00
7.3.120.0000.01814.86
7.3.110.0100.00714.59
7.3.100.0000.01414.84
7.3.90.0030.01414.50
7.3.80.0090.00614.72
7.3.70.0060.00614.77
7.3.60.0030.01314.73
7.3.50.0070.00714.59
7.3.40.0060.00614.76
7.3.30.0050.00614.69
7.3.20.0090.00916.53
7.3.10.0080.00316.58
7.3.00.0040.00716.60
7.2.330.0070.01016.32
7.2.320.0150.00316.52
7.2.310.0130.00916.26
7.2.300.0060.01016.41
7.2.290.0100.00616.55
7.2.260.0090.00915.04
7.2.250.0070.01015.13
7.2.240.0110.00414.68
7.2.230.0030.01315.13
7.2.220.0040.01114.75
7.2.210.0030.00714.62
7.2.200.0120.00414.96
7.2.190.0110.00414.68
7.2.180.0030.00714.65
7.2.170.0060.00614.83
7.2.160.0110.00214.72
7.2.150.0050.00716.65
7.2.140.0040.00916.87
7.2.130.0060.00616.85
7.2.120.0060.00616.84
7.2.110.0090.00416.71
7.2.100.0070.00616.79
7.2.90.0100.00316.78
7.2.80.0080.00616.75
7.2.70.0080.00617.02
7.2.60.0030.01016.88
7.2.50.0090.00416.87
7.2.40.0060.00516.92
7.2.30.0090.00516.93
7.2.20.0070.01116.94
7.2.10.0100.00516.93
7.2.00.0070.00516.76
7.1.330.0030.01015.80
7.1.320.0100.00315.86
7.1.310.0040.00815.71
7.1.300.0040.01115.55
7.1.290.0040.00815.53
7.1.280.0130.00515.72
7.1.270.0030.01015.60
7.1.260.0120.00515.68
7.1.250.0050.00715.71
7.1.240.0030.00615.88
7.1.230.0000.01015.56
7.1.220.0060.01015.79
7.1.210.0000.00815.62
7.1.200.0030.01015.78
7.1.190.0000.01015.74
7.1.180.0030.00615.77
7.1.170.0000.01315.84
7.1.160.0060.00615.93
7.1.150.0030.01015.51
7.1.140.0080.00415.89
7.1.130.0060.00615.68
7.1.120.0100.00315.49
7.1.110.0000.01315.80
7.1.100.0030.01015.36
7.1.90.0040.00715.66
7.1.80.0030.00615.86
7.1.70.0090.00315.57
7.1.60.0100.00315.83
7.1.50.0060.00315.63
7.1.40.0000.01115.71
7.1.30.0040.00815.51
7.1.20.0070.00715.80
7.1.10.0110.00415.60
7.1.00.0120.00015.72

preferences:
93.26 ms | 401 KiB | 5 Q