3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo() { $var = 'help'; $string = "${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)
8.4.120.0110.00820.49
8.4.110.0110.00822.36
8.4.100.0160.00517.62
8.4.90.0120.00817.46
8.4.80.0050.00419.65
8.4.70.0100.00819.70
8.4.60.0140.00618.70
8.4.50.0120.00917.92
8.4.40.0110.00720.30
8.4.30.0130.00620.31
8.4.20.0030.01617.84
8.4.10.0070.00321.86
8.3.250.0080.00818.81
8.3.240.0130.00616.34
8.3.230.0100.00616.89
8.3.220.0060.00716.67
8.3.210.0050.00316.69
8.3.200.0040.00516.59
8.3.190.0060.00817.06
8.3.180.0100.00716.84
8.3.170.0060.01216.30
8.3.160.0140.00716.69
8.3.150.0110.00716.87
8.3.140.0040.00418.93
8.3.130.0100.01018.40
8.3.120.0060.00318.90
8.3.110.0050.00316.86
8.3.100.0000.01018.42
8.3.90.0000.00826.77
8.3.80.0000.01116.50
8.3.70.0070.00716.63
8.3.60.0080.00816.48
8.3.50.0140.00720.25
8.3.40.0110.00320.38
8.3.30.0120.00318.57
8.3.20.0040.00424.18
8.3.10.0030.00524.66
8.3.00.0090.00026.16
8.2.290.0090.00919.00
8.2.280.0110.00718.22
8.2.270.0040.00416.85
8.2.260.0140.00416.36
8.2.250.0040.00416.75
8.2.240.0080.00017.09
8.2.230.0000.00920.94
8.2.220.0030.00624.06
8.2.210.0120.00326.77
8.2.200.0060.00318.04
8.2.190.0120.00916.58
8.2.180.0110.00425.92
8.2.170.0130.00318.97
8.2.160.0160.00322.96
8.2.150.0000.00725.66
8.2.140.0080.00024.66
8.2.130.0000.00826.16
8.2.120.0070.00026.16
8.2.110.0030.00622.12
8.2.100.0000.01117.59
8.2.90.0040.00417.63
8.2.80.0040.00418.71
8.2.70.0000.00817.50
8.2.60.0040.00417.50
8.2.50.0060.00317.55
8.2.40.0070.00018.16
8.2.30.0000.00717.86
8.2.20.0070.00019.12
8.2.10.0020.00517.97
8.2.00.0040.00719.04
8.1.330.0070.01018.41
8.1.320.0120.01116.04
8.1.310.0080.00016.39
8.1.300.0030.00619.72
8.1.290.0040.00430.84
8.1.280.0110.00425.92
8.1.270.0050.00324.66
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0070.00323.88
8.1.230.0070.00418.93
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0000.00817.11
8.1.190.0000.00817.11
8.1.180.0000.00818.10
8.1.170.0070.00017.62
8.1.160.0040.00418.93
8.1.150.0040.00418.47
8.1.140.0030.00617.19
8.1.130.0080.00018.67
8.1.120.0030.00317.29
8.1.110.0030.00417.32
8.1.100.0000.00717.25
8.1.90.0040.00417.20
8.1.80.0120.00617.24
8.1.70.0160.00017.20
8.1.60.0140.00417.41
8.1.50.0140.00617.30
8.1.40.0140.00517.28
8.1.30.0160.00317.45
8.1.20.0120.00617.50
8.1.10.0150.00317.30
8.1.00.0160.00317.16
8.0.300.0040.00418.77
8.0.290.0000.00816.75
8.0.280.0000.00718.38
8.0.270.0070.00016.68
8.0.260.0000.00718.29
8.0.250.0030.00316.76
8.0.240.0000.00716.85
8.0.230.0050.00316.69
8.0.220.0100.00616.63
8.0.210.0130.00316.71
8.0.200.0130.00316.81
8.0.190.0160.00016.80
8.0.180.0050.01016.72
8.0.170.0090.00616.68
8.0.160.0150.00316.64
8.0.150.0120.00216.55
8.0.140.0090.00616.74
8.0.130.0090.00616.52
8.0.120.0080.00816.66
8.0.110.0090.00616.66
8.0.100.0150.00016.63
8.0.90.0100.00516.74
8.0.80.0100.00516.74
8.0.70.0120.00316.70
8.0.60.0090.00616.59
8.0.50.0150.00016.74
8.0.30.0040.01216.67
8.0.20.0120.00316.60
8.0.10.0110.00516.80
7.4.330.0000.00515.55
7.4.320.0040.00416.38
7.4.300.0120.00516.37
7.4.290.0100.00616.27
7.4.280.0130.00416.28
7.4.270.0120.00616.43
7.4.260.0100.00716.32
7.4.250.0140.00416.41
7.4.240.0070.01016.37
7.4.230.0200.00016.41
7.4.220.0140.00316.28
7.4.210.0150.00016.45
7.4.200.0130.00316.45
7.4.190.0130.00316.54
7.4.180.0170.00016.41
7.4.160.0130.00316.55
7.4.150.0160.00016.31
7.4.140.0100.00516.23
7.4.130.0070.00716.13
7.4.120.0150.00416.25
7.4.110.0080.00816.16
7.4.100.0150.00016.36
7.4.90.0090.00616.27
7.4.80.0150.00016.34
7.4.70.0130.00316.21
7.4.60.0130.00316.22
7.4.50.0080.00816.06
7.4.40.0060.00916.13
7.4.30.0160.00016.28
7.4.20.0100.00516.14
7.4.10.0100.00616.12
7.4.00.0180.00016.33

preferences:
86.3 ms | 403 KiB | 5 Q