3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1,2,3]; $b = &$a; foreach($a as $v) { echo "$v\n"; unset($a[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)
8.3.70.0120.00318.43
8.3.60.0090.00618.31
8.3.50.0070.00718.26
8.3.40.0120.00318.66
8.3.30.0070.00718.79
8.3.20.0040.00419.29
8.3.10.0040.00423.65
8.3.00.0000.00820.49
8.2.190.0070.00716.58
8.2.180.0140.00416.50
8.2.170.0150.00022.96
8.2.160.0110.00422.31
8.2.150.0000.00925.66
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0000.00720.74
8.2.110.0070.00419.20
8.2.100.0080.00317.91
8.2.90.0070.00018.16
8.2.80.0040.00417.97
8.2.70.0030.00517.63
8.2.60.0000.00918.05
8.2.50.0030.00618.07
8.2.40.0080.00018.07
8.2.30.0060.00318.04
8.2.20.0040.00418.14
8.2.10.0000.00717.99
8.2.00.0080.00017.55
8.1.280.0110.00425.92
8.1.270.0080.00018.95
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00620.86
8.1.230.0110.00020.88
8.1.220.0040.00417.74
8.1.210.0000.00818.88
8.1.200.0000.00917.23
8.1.190.0030.00617.35
8.1.180.0000.00818.10
8.1.170.0030.00518.59
8.1.160.0040.00418.79
8.1.150.0040.00418.94
8.1.140.0030.00322.14
8.1.130.0030.00520.26
8.1.120.0040.00417.45
8.1.110.0040.00417.45
8.1.100.0000.00717.45
8.1.90.0070.00017.38
8.1.80.0000.00717.52
8.1.70.0030.00317.30
8.1.60.0080.00017.46
8.1.50.0000.00717.40
8.1.40.0030.00517.42
8.1.30.0080.00317.56
8.1.20.0000.00717.62
8.1.10.0000.00717.52
8.1.00.0090.00017.46
8.0.300.0030.00620.03
8.0.290.0060.00316.75
8.0.280.0030.00318.36
8.0.270.0000.00717.25
8.0.260.0030.00318.48
8.0.250.0030.00316.85
8.0.240.0030.00316.97
8.0.230.0030.00316.89
8.0.220.0070.00016.87
8.0.210.0040.00416.79
8.0.200.0070.00016.87
8.0.190.0050.00316.97
8.0.180.0100.00016.84
8.0.170.0030.00516.75
8.0.160.0020.00516.97
8.0.150.0040.00416.80
8.0.140.0040.00416.82
8.0.130.0060.00013.27
8.0.120.0040.00416.87
8.0.110.0000.00716.79
8.0.100.0040.00416.92
8.0.90.0040.00416.77
8.0.80.0090.00616.87
8.0.70.0030.00516.94
8.0.60.0050.00316.89
8.0.50.0000.00716.75
8.0.30.0050.01416.97
8.0.20.0040.01517.40
8.0.10.0000.00716.84
8.0.00.0070.01216.83
7.4.330.0050.00015.55
7.4.320.0040.00416.55
7.4.300.0030.00316.41
7.4.290.0040.00416.59
7.4.280.0000.00716.39
7.4.270.0030.00316.60
7.4.260.0070.00016.49
7.4.250.0030.00516.57
7.4.240.0030.00316.43
7.4.230.0000.00716.32
7.4.220.0000.00816.58
7.4.210.0090.00816.46
7.4.200.0030.00616.67
7.4.160.0090.00616.47
7.4.140.0110.00817.86
7.4.130.0070.01016.57
7.4.120.0080.01016.58
7.4.110.0100.01016.61
7.4.100.0100.00616.39
7.4.90.0120.00616.52
7.4.80.0070.01319.39
7.4.70.0130.00716.38
7.4.60.0130.00916.37
7.4.50.0090.00616.46
7.4.40.0060.01016.51
7.4.00.0110.00314.72
7.3.330.0050.00013.02
7.3.320.0050.00013.02
7.3.310.0040.00416.19
7.3.300.0000.00616.13
7.3.290.0030.00316.21
7.3.280.0060.00916.22
7.3.260.0090.01016.50
7.3.240.0110.00716.29
7.3.230.0160.00016.41
7.3.210.0150.00616.45
7.3.200.0090.01116.59
7.3.190.0080.00816.16
7.3.180.0130.00716.32
7.3.170.0130.01016.31
7.3.160.0090.00616.54
7.3.10.0070.00316.50
7.3.00.0070.00716.62
7.2.330.0030.01416.46
7.2.320.0030.01616.38
7.2.310.0040.01216.59
7.2.300.0120.00616.55
7.2.290.0090.00916.61
7.2.130.0000.01416.93
7.2.120.0040.00816.75
7.2.110.0220.00815.82
7.2.100.0210.00915.70
7.2.90.0170.01115.64
7.2.80.0090.00815.78
7.2.70.0270.00816.04
7.2.60.0080.00816.06
7.2.50.0220.01016.02
7.2.40.0270.00715.96
7.2.30.0260.00315.84
7.2.20.0050.00815.86
7.2.10.0490.00315.91
7.2.00.0080.00615.83
7.1.250.0000.01215.79
7.1.230.0400.00413.73
7.1.220.0580.00314.06
7.1.210.0420.00713.70
7.1.200.0600.00713.89
7.1.190.0600.00013.80
7.1.180.0210.00713.94
7.1.170.0540.00013.80
7.1.160.0520.00414.04
7.1.150.0400.00713.93
7.1.140.0640.01013.66
7.1.130.0120.00313.66
7.1.120.0840.00413.96
7.1.110.0550.00614.09
7.1.100.0470.00413.90
7.1.90.0120.00613.90
7.1.80.0450.01013.57
7.1.70.0430.00713.79
7.1.60.0690.00731.92
7.1.50.0310.00331.79
7.1.40.0860.01631.93
7.1.30.0330.00931.55
7.1.20.0980.00631.64
7.1.10.0100.01013.92
7.1.00.0510.00313.71
5.6.380.0070.00714.16

preferences:
49.41 ms | 401 KiB | 5 Q