3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(substr(null, 1));

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)
8.3.130.0080.00018.41
8.3.120.0040.00418.64
8.3.110.0040.00720.94
8.3.100.0060.00324.06
8.3.90.0080.00026.77
8.3.80.0040.00717.97
8.3.70.0170.00318.31
8.3.60.0070.01118.56
8.3.50.0080.00717.29
8.3.40.0140.00018.71
8.3.30.0070.00718.32
8.3.20.0000.00821.76
8.3.10.0080.00020.56
8.3.00.0090.00017.50
8.2.250.0000.00816.49
8.2.240.0100.00720.38
8.2.230.0040.00422.58
8.2.220.0090.00037.54
8.2.210.0000.00726.77
8.2.200.0110.00016.63
8.2.190.0040.01216.58
8.2.180.0090.00916.38
8.2.170.0070.00722.96
8.2.160.0030.01422.23
8.2.150.0000.00924.18
8.2.140.0090.00024.66
8.2.130.0090.00017.81
8.2.120.0040.00426.35
8.2.110.0050.00521.12
8.2.100.0100.00317.72
8.2.90.0050.00317.91
8.2.80.0000.00817.97
8.2.70.0030.00517.80
8.2.60.0000.00818.09
8.2.50.0080.00018.10
8.2.40.0080.00020.91
8.2.30.0040.00419.11
8.2.20.0000.00717.92
8.2.10.0000.00819.04
8.2.00.0070.00017.87
8.1.300.0040.00417.68
8.1.290.0090.00330.84
8.1.280.0120.00325.92
8.1.270.0050.00320.27
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0070.00323.96
8.1.230.0040.00720.91
8.1.220.0080.00017.74
8.1.210.0040.00818.77
8.1.200.0030.00617.23
8.1.190.0030.00517.10
8.1.180.0000.01018.10
8.1.170.0040.00418.59
8.1.160.0080.00018.72
8.1.150.0070.00018.42
8.1.140.0000.00718.82
8.1.130.0070.00020.08
8.1.120.0000.00717.30
8.1.110.0000.00717.21
8.1.100.0000.00717.23
8.1.90.0030.00417.32
8.1.80.0030.00517.14
8.1.70.0000.00717.36
8.1.60.0050.00317.45
8.1.50.0160.00317.30
8.1.40.0150.00417.33
8.1.30.0130.00517.45
8.1.20.0120.00817.45
8.1.10.0150.00417.35
8.1.00.0090.00617.22
8.0.300.0050.00319.65
8.0.290.0040.00416.58
8.0.280.0080.00018.32
8.0.270.0030.00317.14
8.0.260.0030.00318.23
8.0.250.0000.00716.79
8.0.240.0000.00816.76
8.0.230.0040.00416.76
8.0.220.0030.00316.65
8.0.210.0000.00716.70
8.0.200.0030.00316.77
8.0.190.0000.00716.86
8.0.180.0080.00316.71
8.0.170.0030.00816.71
8.0.160.0100.00516.66
8.0.150.0100.00516.66
8.0.140.0100.00416.65
8.0.130.0120.00415.44
8.0.120.0150.00216.75
8.0.110.0090.00216.69
8.0.100.0100.00316.72
8.0.90.0130.00116.63
8.0.80.0100.00916.74
8.0.70.0120.00416.59
8.0.60.0120.00416.71
8.0.50.0130.00216.77
8.0.30.0100.00816.82
8.0.20.0120.00716.84
8.0.10.0130.00716.87
8.0.00.0100.00716.73
7.4.330.0020.00215.55
7.4.320.0000.00616.41
7.4.300.0000.00616.44
7.4.290.0150.00016.31
7.4.280.0070.00716.42
7.4.270.0130.00216.40
7.4.260.0040.00816.35
7.4.250.0140.00416.38
7.4.240.0170.00216.38
7.4.230.0110.00716.34
7.4.220.0130.00416.35
7.4.210.0110.00616.40
7.4.200.0110.00616.28
7.4.190.0160.01016.45
7.4.180.0190.00416.36
7.4.160.0100.00816.39
7.4.150.0140.00416.39
7.4.140.0110.00716.89
7.4.130.0110.00816.33
7.4.120.0090.01016.25
7.4.110.0090.00916.22
7.4.100.0090.00916.32
7.4.90.0110.00816.31
7.4.80.0120.00616.87
7.4.70.0110.00716.25
7.4.60.0110.00716.22
7.4.50.0100.00816.19
7.4.40.0110.00616.14
7.4.30.0080.01016.23
7.4.20.0110.00616.16
7.4.10.0100.00716.04
7.4.00.0100.00815.58
7.3.330.0130.00415.09
7.3.320.0080.00814.98
7.3.310.0120.00516.08
7.3.300.0130.00416.16
7.3.290.0120.00516.16
7.3.280.0130.00716.10
7.3.270.0140.00516.14
7.3.260.0110.00816.10
7.3.250.0120.00716.08
7.3.240.0120.00816.24
7.3.230.0130.00616.14
7.3.220.0100.00915.96
7.3.210.0130.00716.13
7.3.200.0100.00816.13
7.3.190.0110.00816.05
7.3.180.0120.00816.10
7.3.170.0090.00916.11
7.3.160.0140.00516.05
7.3.150.0100.00916.02
7.3.140.0130.00716.04
7.3.130.0090.01015.72
7.3.120.0090.00915.61
7.3.110.0090.00815.50
7.3.100.0130.00515.43
7.3.90.0080.00815.66
7.3.80.0110.00615.59
7.3.70.0110.00515.69
7.3.60.0080.00815.70
7.3.50.0100.00715.63
7.3.40.0120.00515.73
7.3.30.0090.00915.70
7.3.20.0160.00716.96
7.3.10.0160.00616.53
7.3.00.0150.00616.63
7.2.340.0140.00616.05
7.2.330.0140.00716.16
7.2.320.0160.00716.22
7.2.310.0100.00916.19
7.2.300.0120.00916.20
7.2.290.0130.00816.07
7.2.280.0150.00716.08
7.2.270.0150.00716.12
7.2.260.0140.00915.84
7.2.250.0140.00715.73
7.2.240.0140.00615.79
7.2.230.0110.00715.67
7.2.220.0130.00715.70
7.2.210.0120.00715.68
7.2.200.0120.00815.72
7.2.190.0110.00915.75
7.2.180.0090.01015.78
7.2.170.0110.00815.81
7.2.160.0110.00715.77
7.2.150.0140.00717.07
7.2.140.0110.01017.01
7.2.130.0150.00716.80
7.2.120.0160.00716.78
7.2.110.0150.00816.77
7.2.100.0160.00616.83
7.2.90.0160.00716.75
7.2.80.0160.00616.84
7.2.70.0160.00716.77
7.2.60.0140.00816.63
7.2.50.0160.00816.76
7.2.40.0150.00716.78
7.2.30.0170.00816.80
7.2.20.0150.00916.76
7.2.10.0180.00616.76
7.2.00.0160.00616.72
7.1.330.0140.00916.01
7.1.320.0130.00816.12
7.1.310.0110.00916.15
7.1.300.0130.00716.07
7.1.290.0160.00616.00
7.1.280.0120.00816.12
7.1.270.0140.00916.12
7.1.260.0120.00616.00
7.1.250.0180.00615.77
7.1.240.0210.00515.71
7.1.230.0280.00915.81
7.1.220.0190.00715.76
7.1.210.0190.00515.73
7.1.200.0160.00815.78
7.1.190.0180.00715.70
7.1.180.0230.00615.66
7.1.170.0200.00815.69
7.1.160.0170.00715.69
7.1.150.0240.01015.74
7.1.140.0170.00715.60
7.1.130.0170.00815.69
7.1.120.0210.00615.72
7.1.110.0180.00715.71
7.1.100.0160.00815.65
7.1.90.0250.00615.71
7.1.80.0210.00715.69
7.1.70.0190.00715.55
7.1.60.0220.00515.84
7.1.50.0150.00815.65
7.1.40.0150.00715.72
7.1.30.0330.00715.66
7.1.20.0190.00515.72
7.1.10.0260.00515.65
7.1.00.0150.00715.64

preferences:
25.47 ms | 403 KiB | 5 Q