3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['foo','bar','baz']; // touch refcount $b = &$a; foreach($a as $v) { echo 'Running ', $v, "\n"; unset($a[1]); var_dump($a); } echo 'final:', "\n"; var_dump($a);

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)
8.3.40.0070.00718.84
8.3.30.0070.01018.53
8.3.20.0040.00420.34
8.3.10.0040.00421.89
8.3.00.0060.00323.51
8.2.170.0120.00322.96
8.2.160.0090.00620.47
8.2.150.0030.00524.18
8.2.140.0030.00624.66
8.2.130.0050.00319.76
8.2.120.0000.00826.35
8.2.110.0060.00322.22
8.2.100.0080.00417.82
8.2.90.0050.00317.75
8.2.80.0050.00317.97
8.2.70.0000.01017.63
8.2.60.0000.00817.93
8.2.50.0070.00318.07
8.2.40.0050.00322.13
8.2.30.0000.00719.56
8.2.20.0040.00417.66
8.2.10.0030.00618.04
8.2.00.0070.00017.96
8.1.270.0040.00423.86
8.1.260.0060.00328.09
8.1.250.0080.00028.09
8.1.240.0000.00823.83
8.1.230.0000.01119.10
8.1.220.0000.00817.79
8.1.210.0040.00418.77
8.1.200.0000.00917.36
8.1.190.0000.00917.23
8.1.180.0030.00518.10
8.1.170.0080.00018.51
8.1.160.0040.00420.77
8.1.150.0000.00818.77
8.1.140.0000.00819.58
8.1.130.0000.00717.71
8.1.120.0000.00717.45
8.1.110.0000.00817.36
8.1.100.0040.00417.38
8.1.90.0000.00817.38
8.1.80.0000.00717.48
8.1.70.0050.00317.39
8.1.60.0040.00417.51
8.1.50.0000.00917.50
8.1.40.0030.00517.45
8.1.30.0000.00917.62
8.1.20.0040.00417.56
8.1.10.0060.00317.50
8.1.00.0050.00217.52
8.0.300.0000.00819.63
8.0.290.0030.00716.63
8.0.280.0050.00218.41
8.0.270.0000.00717.30
8.0.260.0070.00017.21
8.0.250.0030.00316.88
8.0.240.0030.00317.02
8.0.230.0080.00016.98
8.0.220.0000.00716.87
8.0.210.0000.00716.88
8.0.200.0030.00516.84
8.0.190.0000.00716.94
8.0.180.0030.00916.88
8.0.170.0080.00016.82
8.0.160.0040.00416.88
8.0.150.0000.00716.72
8.0.140.0040.00416.84
8.0.130.0030.00313.28
8.0.120.0050.00316.91
8.0.110.0040.00416.87
8.0.100.0060.00316.76
8.0.90.0000.00816.84
8.0.80.0070.01416.93
8.0.70.0000.00816.94
8.0.60.0020.00516.84
8.0.50.0030.00516.76
8.0.30.0080.01217.18
8.0.20.0120.01017.40
8.0.10.0030.00317.01
8.0.00.0100.00916.80
7.4.330.0000.00516.67
7.4.320.0070.00016.53
7.4.300.0040.00416.57
7.4.290.0030.00316.59
7.4.280.0000.00916.63
7.4.270.0030.00316.51
7.4.260.0030.00316.59
7.4.250.0000.00716.59
7.4.240.0040.00416.57
7.4.230.0070.00016.58
7.4.220.0070.01116.64
7.4.210.0080.00816.57
7.4.200.0000.00716.64
7.4.160.0130.01016.38
7.4.150.0060.01717.40
7.4.140.0140.01617.86
7.4.130.0100.00916.62
7.4.120.0110.00916.56
7.4.110.0190.00416.51
7.4.100.0170.00016.50
7.4.90.0070.01016.51
7.4.80.0060.01319.39
7.4.70.0090.00916.52
7.4.60.0100.00716.54
7.4.50.0030.01016.55
7.4.40.0080.01116.23
7.4.30.0140.00716.66
7.4.00.0090.00914.86
7.3.330.0050.00013.16
7.3.320.0000.00513.01
7.3.310.0050.00316.34
7.3.300.0070.00016.25
7.3.290.0060.00916.34
7.3.280.0070.00816.28
7.3.270.0160.00917.40
7.3.260.0070.01016.57
7.3.250.0080.00916.47
7.3.240.0150.00416.28
7.3.230.0140.00316.41
7.3.210.0130.00716.33
7.3.200.0030.01619.39
7.3.190.0070.01016.27
7.3.180.0070.01016.23
7.3.170.0140.00316.58
7.3.160.0060.00916.26
7.3.10.0150.00016.46
7.3.00.0000.01516.39
7.2.330.0150.01116.33
7.2.320.0100.01316.69
7.2.310.0120.00616.68
7.2.300.0170.00316.60
7.2.290.0100.00616.57
7.2.130.0110.00816.55
7.2.120.0030.01316.43
7.2.110.0100.00717.01
7.2.100.0180.01116.54
7.2.90.0130.00716.71
7.2.80.0040.01216.34
7.2.70.0090.00616.81
7.2.60.0050.00916.73
7.2.50.0090.00316.88
7.2.40.0160.00316.63
7.2.30.0130.00016.66
7.2.20.0060.00816.82
7.2.10.0110.00016.63
7.2.00.0030.00618.05
7.1.250.0130.00615.72
7.1.200.0060.00615.86
7.1.100.0160.01018.30
7.1.70.0030.00617.05
7.1.60.0090.01619.12
7.1.50.0090.01217.14
7.1.00.0070.07322.48
7.0.200.0130.00414.63
7.0.60.0270.07721.56
7.0.50.0030.06317.90
7.0.40.0070.07020.03
7.0.30.0230.04720.11
7.0.20.0270.05720.30
7.0.10.0370.03720.16
7.0.00.0130.07319.99
5.6.280.0000.05320.86
5.6.210.0100.04020.59
5.6.200.0030.06318.17
5.6.190.0130.08020.40
5.6.180.0470.06720.49
5.6.170.0300.04720.41
5.6.160.0270.03320.52
5.6.150.0030.08018.15
5.6.140.0070.06318.12
5.6.130.0070.04018.08
5.6.120.0070.05721.05
5.6.110.0100.07320.99
5.6.100.0100.08021.00
5.6.90.0070.04321.00
5.6.80.0100.06320.42
5.5.350.0200.03020.39
5.5.340.0030.07317.97
5.5.330.0030.04720.07
5.5.320.0370.06320.34
5.5.310.0200.04020.41
5.5.300.0070.03718.00
5.5.290.0130.07317.94
5.5.280.0030.05020.75
5.5.270.0000.08320.64
5.5.260.0100.04320.67
5.5.250.0070.07720.58
5.5.240.0100.07720.23

preferences:
44.36 ms | 400 KiB | 5 Q