3v4l.org

run code in 300+ PHP versions simultaneously
<?php $q = 1; echo substr($q, -4);

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)
8.3.60.0140.00716.50
8.3.50.0070.00718.17
8.3.40.0040.01118.52
8.3.30.0110.00718.65
8.3.20.0040.00421.60
8.3.10.0080.00023.66
8.3.00.0080.00019.69
8.2.180.0060.01518.16
8.2.170.0110.00422.96
8.2.160.0070.00719.51
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0000.00820.38
8.2.120.0060.00326.35
8.2.110.0060.00322.26
8.2.100.0090.00317.66
8.2.90.0000.00819.28
8.2.80.0050.00318.03
8.2.70.0040.00417.38
8.2.60.0040.00417.91
8.2.50.0090.00018.10
8.2.40.0050.00320.55
8.2.30.0030.00619.25
8.2.20.0080.00017.91
8.2.10.0050.00217.99
8.2.00.0000.00817.91
8.1.280.0100.01025.92
8.1.270.0100.00020.64
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.82
8.1.230.0040.00717.83
8.1.220.0050.00317.74
8.1.210.0000.00918.77
8.1.200.0000.00917.23
8.1.190.0080.00017.10
8.1.180.0000.00918.10
8.1.170.0050.00318.41
8.1.160.0040.00418.72
8.1.150.0070.00018.73
8.1.140.0060.00317.37
8.1.130.0000.00718.72
8.1.120.0030.00317.40
8.1.110.0040.00417.30
8.1.100.0050.00317.27
8.1.90.0000.00817.37
8.1.80.0000.00717.40
8.1.70.0030.00317.28
8.1.60.0020.00517.47
8.1.50.0000.00717.37
8.1.40.0100.00017.50
8.1.30.0040.00417.47
8.1.20.0040.00417.57
8.1.10.0000.00717.39
8.1.00.0000.00817.29
8.0.300.0020.00518.77
8.0.290.0000.00716.75
8.0.280.0000.00718.44
8.0.270.0040.00417.25
8.0.260.0030.00317.16
8.0.250.0070.00016.97
8.0.240.0070.00016.92
8.0.230.0040.00416.94
8.0.220.0070.00016.79
8.0.210.0030.00316.67
8.0.200.0070.00016.92
8.0.190.0080.00016.77
8.0.180.0040.00416.71
8.0.170.0000.00716.73
8.0.160.0040.00416.73
8.0.150.0040.00416.80
8.0.140.0050.00216.67
8.0.130.0060.00013.20
8.0.120.0040.00416.75
8.0.110.0070.00016.61
8.0.100.0030.00516.69
8.0.90.0040.00416.80
8.0.80.0100.01016.76
8.0.70.0080.00016.68
8.0.60.0030.00616.69
8.0.50.0080.00016.64
8.0.30.0140.00416.96
8.0.20.0060.01217.40
8.0.10.0070.00016.93
8.0.00.0030.01516.75
7.4.330.0000.00515.55
7.4.320.0060.00016.55
7.4.300.0050.00416.50
7.4.290.0000.00716.57
7.4.280.0020.00516.45
7.4.270.0070.00016.55
7.4.260.0000.00716.40
7.4.250.0000.00716.41
7.4.240.0000.00816.53
7.4.230.0040.00416.28
7.4.220.0040.01216.37
7.4.210.0030.01716.59
7.4.200.0060.00316.22
7.4.160.0130.00316.43
7.4.150.0090.00917.40
7.4.140.0110.00817.86
7.4.130.0070.01316.47
7.4.120.0100.01216.47
7.4.110.0030.01316.49
7.4.100.0100.00716.43
7.4.90.0100.01316.25
7.4.80.0030.01719.39
7.4.70.0040.01216.18
7.4.60.0060.01016.27
7.4.50.0040.01116.48
7.4.40.0090.00916.30
7.4.30.0100.00716.43
7.4.00.0080.00714.78
7.3.330.0030.00312.96
7.3.320.0030.00312.94
7.3.310.0000.00715.97
7.3.300.0000.00716.07
7.3.290.0080.00616.10
7.3.280.0100.00616.14
7.3.270.0150.00317.40
7.3.260.0100.00916.31
7.3.250.0080.00816.30
7.3.240.0140.00616.27
7.3.230.0110.01116.23
7.3.210.0090.00916.14
7.3.200.0120.00316.44
7.3.190.0070.01016.35
7.3.180.0090.00816.11
7.3.170.0060.01016.38
7.3.160.0060.00916.16
7.3.120.0100.00714.33
7.3.110.0030.01314.64
7.3.100.0030.01414.98
7.3.90.0080.00814.61
7.3.80.0070.00714.79
7.3.70.0030.01014.66
7.3.60.0000.00914.58
7.3.50.0070.00414.59
7.3.40.0060.01214.48
7.3.30.0030.01314.57
7.3.20.0090.00316.32
7.3.10.0030.00616.79
7.3.00.0070.00716.57
7.2.330.0070.01016.21
7.2.320.0100.01416.64
7.2.310.0070.01016.48
7.2.300.0100.00716.61
7.2.290.0050.01116.52
7.2.250.0000.01814.55
7.2.240.0110.00814.66
7.2.230.0070.00714.97
7.2.220.0090.00915.05
7.2.210.0000.01714.77
7.2.200.0030.01015.09
7.2.190.0120.00315.10
7.2.180.0030.01314.90
7.2.170.0030.01314.80
7.1.330.0070.00715.70
7.1.320.0070.00415.78
7.1.310.0060.00915.39
7.1.300.0070.00715.67
7.1.290.0100.00615.85
7.1.280.0150.00315.83
7.1.270.0040.00415.48
7.1.260.0100.00315.84
7.1.70.0000.00817.07
7.1.60.0730.00315.07
7.1.50.0130.02034.57
7.1.40.0200.01334.14
7.1.30.0230.00334.15
7.1.20.0170.01734.12
7.1.10.0430.01314.45
7.1.00.0000.01716.62
7.0.200.0030.01416.75
7.0.190.0030.01016.52
7.0.180.0030.01016.04
7.0.170.0030.01315.91
7.0.160.0030.01015.79
7.0.150.0070.00715.99
7.0.140.0030.01016.06
7.0.130.0030.00716.29
7.0.120.0030.01016.43
7.0.110.0030.01316.05
7.0.100.0030.01015.88
7.0.90.0070.00716.24
7.0.80.0070.01016.01
7.0.70.0000.01015.98
7.0.60.0000.01015.93
7.0.50.0000.01016.29
7.0.40.0070.00316.29
7.0.30.0030.00716.31
7.0.20.0070.00716.27
7.0.10.0030.00716.27
7.0.00.0070.00316.17

preferences:
32.77 ms | 400 KiB | 5 Q