3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = 'string'; //echo $var[count($var) - 1]; echo count($var);

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)
8.3.60.0120.00916.61
8.3.50.0120.00616.03
8.3.40.0120.00918.80
8.3.30.0170.00318.59
8.3.20.0040.00419.98
8.3.10.0040.00423.71
8.3.00.0000.00723.66
8.2.180.0040.01118.41
8.2.170.0120.00622.96
8.2.160.0070.00720.16
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00020.88
8.2.120.0140.00026.35
8.2.110.0030.00622.11
8.2.100.0090.00317.66
8.2.90.0030.00518.03
8.2.80.0000.00817.97
8.2.70.0040.00417.50
8.2.60.0080.00017.80
8.2.50.0040.00418.09
8.2.40.0040.00422.20
8.2.30.0000.00719.43
8.2.20.0040.00417.69
8.2.10.0070.00018.15
8.2.00.0000.00718.09
8.1.280.0140.00325.92
8.1.270.0180.00022.16
8.1.260.0000.00828.09
8.1.250.0040.00428.09
8.1.240.0030.00622.20
8.1.230.0040.00820.84
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0060.00317.25
8.1.190.0080.00017.22
8.1.180.0030.00518.10
8.1.170.0050.00318.42
8.1.160.0070.00020.74
8.1.150.0030.00618.88
8.1.140.0000.00819.65
8.1.130.0000.00717.61
8.1.120.0070.00017.35
8.1.110.0000.00717.39
8.1.100.0040.00417.41
8.1.90.0020.00517.45
8.1.80.0040.00417.48
8.1.70.0070.00017.45
8.1.60.0040.00417.46
8.1.50.0000.00817.52
8.1.40.0020.00517.47
8.1.30.0000.00817.66
8.1.20.0040.00417.66
8.1.10.0040.00417.54
8.1.00.0030.00617.46
8.0.300.0040.00419.94
8.0.290.0070.00016.63
8.0.280.0000.00718.36
8.0.270.0000.00717.10
8.0.260.0070.00017.16
8.0.250.0000.00716.86
8.0.240.0070.00016.91
8.0.230.0030.00316.93
8.0.220.0000.00816.75
8.0.210.0080.00016.82
8.0.200.0030.00717.00
8.0.190.0040.00416.87
8.0.180.0030.00516.96
8.0.170.0040.00417.02
8.0.160.0030.00317.05
8.0.150.0030.00616.76
8.0.140.0000.00716.94
8.0.130.0030.00313.35
8.0.120.0000.00816.87
8.0.110.0040.00417.01
8.0.100.0050.00316.85
8.0.90.0040.00416.94
8.0.80.0100.00716.92
8.0.70.0000.00716.92
8.0.60.0050.00216.75
8.0.50.0040.00416.81
8.0.30.0120.00717.27
8.0.20.0080.01517.40
8.0.10.0000.00717.00
8.0.00.0070.01216.79
7.4.330.0020.00216.69
7.4.320.0030.00316.49
7.4.300.0030.00316.48
7.4.290.0030.00616.39
7.4.280.0000.00816.54
7.4.270.0020.00416.51
7.4.260.0040.00716.43
7.4.250.0000.00716.55
7.4.240.0040.00416.48
7.4.230.0030.00316.61
7.4.220.0140.00416.51
7.4.210.0030.01016.53
7.4.200.0000.00716.68
7.4.160.0090.00616.39
7.4.150.0120.01217.40
7.4.140.0200.00317.86
7.4.130.0090.00916.32
7.4.120.0110.00616.54
7.4.110.0000.01616.50
7.4.100.0150.00316.43
7.4.90.0130.00416.58
7.4.80.0030.01419.39
7.4.70.0100.00616.42
7.4.60.0040.01216.48
7.4.50.0130.00316.38
7.4.40.0070.01016.35
7.4.30.0040.01416.49
7.4.00.0090.00614.92
7.3.330.0060.00013.05
7.3.320.0020.00213.00
7.3.310.0070.00016.20
7.3.300.0030.00316.29
7.3.290.0090.00716.23
7.3.280.0070.01216.30
7.3.270.0090.00817.40
7.3.260.0120.00916.45
7.3.250.0120.00516.36
7.3.240.0120.00616.38
7.3.230.0030.01216.39
7.3.210.0110.00616.25
7.3.200.0070.01119.39
7.3.190.0090.00616.31
7.3.180.0140.00416.46
7.3.170.0080.00816.27
7.3.160.0060.00916.35
7.2.330.0040.01416.59
7.2.320.0150.00616.58
7.2.310.0060.00916.38
7.2.300.0110.00616.60
7.2.290.0110.00716.52
7.2.80.0000.01416.77
7.2.60.0110.00016.79
7.2.00.0030.01019.33
7.1.200.0080.00415.68
7.1.100.0000.01318.05
7.1.70.0030.00617.14
7.1.60.0100.01419.40
7.1.50.0100.00316.84
7.1.00.0030.07722.46
7.0.200.0040.00416.75
7.0.60.0170.08721.74
7.0.50.0100.05317.80
7.0.40.0030.04320.02
7.0.30.0230.04320.17
7.0.20.0300.07320.31
7.0.10.0070.07320.32
7.0.00.0130.03320.31
5.6.280.0000.03720.92
5.6.210.0170.07720.74
5.6.200.0070.04718.09
5.6.190.0130.08020.27
5.6.180.0170.04320.60
5.6.170.0530.07020.50
5.6.160.0170.03720.41
5.6.150.0100.04318.12
5.6.140.0030.05018.18
5.6.130.0070.07018.15
5.6.120.0070.05720.99
5.6.110.0170.07720.99
5.6.100.0170.05721.13
5.6.90.0130.07720.96
5.6.80.0170.07020.40
5.5.350.0330.05720.47
5.5.340.0100.06717.91
5.5.330.0100.04020.01
5.5.320.0330.04720.13
5.5.310.0200.05020.31
5.5.300.0030.04318.02
5.5.290.0100.06317.98
5.5.280.0130.04020.72
5.5.270.0100.08320.79
5.5.260.0070.07020.71
5.5.250.0130.07720.57
5.5.240.0370.03720.34

preferences:
44.85 ms | 401 KiB | 5 Q