3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'Qualtrics'; echo $str . "$str" . '$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)
8.3.70.0090.00617.93
8.3.60.0150.00016.75
8.3.50.0090.00922.11
8.3.40.0100.00718.84
8.3.30.0090.00618.50
8.3.20.0030.00520.01
8.3.10.0040.00423.57
8.3.00.0030.00619.02
8.2.190.0110.00418.10
8.2.180.0150.00418.04
8.2.170.0000.01422.96
8.2.160.0080.00620.52
8.2.150.0000.00824.18
8.2.140.0100.00724.66
8.2.130.0060.00319.24
8.2.120.0070.00026.35
8.2.110.0060.00320.56
8.2.100.0070.00718.03
8.2.90.0000.00719.05
8.2.80.0030.00617.97
8.2.70.0040.00417.50
8.2.60.0000.01117.80
8.2.50.0080.00018.07
8.2.40.0030.00619.37
8.2.30.0040.00420.50
8.2.20.0050.00317.67
8.2.10.0040.00418.05
8.2.00.0000.00718.05
8.1.280.0120.00425.92
8.1.270.0040.00423.74
8.1.260.0040.00428.09
8.1.250.0000.00828.09
8.1.240.0080.00023.88
8.1.230.0110.00019.44
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0090.00017.22
8.1.190.0000.00817.13
8.1.180.0040.00418.10
8.1.170.0070.00020.33
8.1.160.0070.00021.95
8.1.150.0040.00418.88
8.1.140.0050.00319.47
8.1.130.0070.00017.55
8.1.120.0000.00717.40
8.1.110.0040.00417.37
8.1.100.0040.00417.36
8.1.90.0070.00017.44
8.1.80.0050.00217.41
8.1.70.0030.00317.37
8.1.60.0040.00417.56
8.1.50.0040.00417.39
8.1.40.0000.00817.40
8.1.30.0080.00017.66
8.1.20.0000.00717.50
8.1.10.0000.00717.54
8.1.00.0000.00817.46
8.0.300.0000.00918.77
8.0.290.0000.00716.63
8.0.280.0030.00318.33
8.0.270.0030.00317.24
8.0.260.0000.00617.25
8.0.250.0040.00416.80
8.0.240.0020.00516.81
8.0.230.0030.00316.91
8.0.220.0000.00716.77
8.0.210.0070.00016.77
8.0.200.0030.00316.95
8.0.190.0030.00616.90
8.0.180.0000.00816.94
8.0.170.0040.00416.90
8.0.160.0030.00416.90
8.0.150.0000.00716.89
8.0.140.0040.00416.80
8.0.130.0060.00013.25
8.0.120.0070.00016.75
8.0.110.0000.00816.94
8.0.100.0080.00016.75
8.0.90.0000.00716.75
8.0.80.0110.01016.77
8.0.70.0040.00416.92
8.0.60.0040.00416.68
8.0.50.0040.00416.78
8.0.30.0090.01017.13
8.0.20.0070.01117.40
8.0.10.0040.00417.00
8.0.00.0100.00816.72
7.4.330.0020.00216.66
7.4.320.0070.00016.58
7.4.300.0000.00616.56
7.4.290.0000.00716.49
7.4.280.0030.00516.58
7.4.270.0070.00316.57
7.4.260.0040.00416.46
7.4.250.0020.00516.52
7.4.240.0050.00216.56
7.4.230.0000.00816.67
7.4.220.0100.00716.61
7.4.210.0060.00916.43
7.4.200.0000.00716.49
7.4.160.0070.01016.34
7.4.150.0120.00617.40
7.4.140.0170.00617.86
7.4.130.0100.00816.51
7.4.120.0070.01016.43
7.4.110.0190.00316.52
7.4.100.0160.00616.46
7.4.90.0110.00616.44
7.4.80.0090.00819.39
7.4.70.0100.00716.50
7.4.60.0060.00916.65
7.4.50.0060.01016.51
7.4.40.0170.00016.51
7.4.30.0070.01516.34
7.4.00.0100.00714.85
7.3.330.0000.00713.06
7.3.320.0030.00313.21
7.3.310.0070.00016.06
7.3.300.0000.00716.28
7.3.290.0080.01216.23
7.3.280.0120.00416.25
7.3.270.0090.00817.40
7.3.260.0120.01216.54
7.3.250.0120.00516.35
7.3.240.0060.01016.32
7.3.230.0110.00716.39
7.3.210.0130.00316.29
7.3.200.0110.00616.28
7.3.190.0090.00616.24
7.3.180.0110.00516.56
7.3.170.0060.01616.27
7.3.160.0160.00816.41
7.3.10.0070.01116.80
7.3.00.0120.00616.65
7.2.330.0110.00716.54
7.2.320.0140.00616.72
7.2.310.0090.01216.57
7.2.300.0100.00716.58
7.2.290.0030.01316.64
7.2.130.0060.00816.88
7.2.120.0100.00016.62
7.2.110.0070.00716.72
7.2.100.0030.00916.72
7.2.90.0070.00717.05
7.2.80.0070.00717.01
7.2.70.0070.00716.61
7.2.60.0020.01216.82
7.2.50.0120.00317.00
7.2.40.0040.01116.94
7.2.30.0030.00717.02
7.2.20.0100.00616.64
7.2.10.0130.00316.75
7.2.00.0100.00716.75
7.1.250.0030.01215.96
7.1.200.0030.00815.54
7.1.70.0050.00216.96
7.1.60.0100.01719.48
7.1.50.0100.01016.75
7.1.00.0000.08022.51
7.0.200.0120.00614.87
7.0.60.0130.05019.89
7.0.50.0100.04017.77
7.0.40.0070.05020.27
7.0.30.0300.03720.20
7.0.20.0270.05020.17
7.0.10.0030.05720.12
7.0.00.0000.05020.16
5.6.280.0000.05721.14
5.6.210.0070.08720.70
5.6.200.0100.08018.21
5.6.190.0200.07320.41
5.6.180.0430.07720.49
5.6.170.0270.07720.49
5.6.160.0070.08720.61
5.6.150.0070.07718.16
5.6.140.0100.08318.16
5.6.130.0100.06018.11
5.6.120.0070.04020.96
5.6.110.0170.06720.88
5.6.100.0000.04721.13
5.6.90.0070.08020.96
5.6.80.0030.04020.33
5.5.350.3130.03020.42
5.5.340.0100.04717.96
5.5.330.0100.08320.36
5.5.320.0470.04020.51
5.5.310.0270.03320.27
5.5.300.0030.06017.98
5.5.290.0030.06717.98
5.5.280.0070.05320.96
5.5.270.0070.04020.75
5.5.260.0130.08320.78
5.5.250.0030.07720.46
5.5.240.0330.05720.34

preferences:
56.52 ms | 401 KiB | 5 Q