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)
8.3.60.0120.00316.50
8.3.50.0070.01118.32
8.3.40.0040.01118.70
8.3.30.0110.00318.84
8.3.20.0040.00420.29
8.3.10.0040.00423.59
8.3.00.0040.00419.79
8.2.180.0150.00418.41
8.2.170.0070.01022.96
8.2.160.0070.00720.35
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0060.00321.12
8.2.120.0050.00326.35
8.2.110.0030.00722.30
8.2.100.0060.00617.93
8.2.90.0040.00419.17
8.2.80.0060.00317.97
8.2.70.0090.00017.75
8.2.60.0030.00518.05
8.2.50.0050.00318.07
8.2.40.0000.00822.21
8.2.30.0000.00720.68
8.2.20.0000.00717.80
8.2.10.0000.00718.05
8.2.00.0040.00417.95
8.1.280.0070.00725.92
8.1.270.0040.00423.99
8.1.260.0080.00028.09
8.1.250.0000.00828.09
8.1.240.0030.00623.98
8.1.230.0050.00617.83
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0000.00817.23
8.1.190.0000.00817.11
8.1.180.0080.00018.10
8.1.170.0000.00818.46
8.1.160.0020.00520.76
8.1.150.0050.00218.93
8.1.140.0050.00519.48
8.1.130.0030.00317.64
8.1.120.0040.00317.52
8.1.110.0000.00717.49
8.1.100.0070.00017.38
8.1.90.0000.00717.36
8.1.80.0020.00517.36
8.1.70.0030.00317.29
8.1.60.0040.00417.50
8.1.50.0000.00717.51
8.1.40.0060.00317.41
8.1.30.0030.00617.69
8.1.20.0030.00717.66
8.1.10.0000.00917.35
8.1.00.0040.00417.47
8.0.300.0040.00418.77
8.0.290.0070.00016.63
8.0.280.0030.00318.34
8.0.270.0030.00317.29
8.0.260.0060.00017.25
8.0.250.0070.00016.99
8.0.240.0000.00716.97
8.0.230.0000.00616.92
8.0.220.0000.00716.91
8.0.210.0030.00316.91
8.0.200.0040.00416.93
8.0.190.0050.00516.93
8.0.180.0000.00716.91
8.0.170.0000.00816.87
8.0.160.0080.00017.02
8.0.150.0030.00316.73
8.0.140.0110.00016.74
8.0.130.0050.00513.36
8.0.120.0040.00416.76
8.0.110.0030.00616.88
8.0.100.0040.00416.71
8.0.90.0040.00416.80
8.0.80.0070.00716.89
8.0.70.0070.00016.82
8.0.60.0040.00416.73
8.0.50.0040.00416.79
8.0.30.0090.01017.09
8.0.20.0090.00917.40
8.0.10.0000.00716.86
8.0.00.0110.00916.87
7.4.330.0000.00516.83
7.4.320.0030.00316.57
7.4.300.0000.00616.45
7.4.290.0030.00316.58
7.4.280.0050.00516.59
7.4.270.0000.00716.52
7.4.260.0070.00016.45
7.4.250.0000.00716.57
7.4.240.0030.00416.48
7.4.230.0040.00416.40
7.4.220.0070.01016.70
7.4.210.0090.00516.69
7.4.200.0070.00016.39
7.4.160.0080.00816.34
7.4.150.0040.01317.40
7.4.140.0100.01117.86
7.4.130.0030.01516.48
7.4.120.0090.01116.58
7.4.110.0040.01416.55
7.4.100.0090.00916.54
7.4.90.0070.01016.65
7.4.80.0080.00819.39
7.4.70.0070.01416.57
7.4.60.0030.01416.42
7.4.50.0090.00616.46
7.4.40.0150.00316.67
7.4.30.0130.00316.52
7.4.10.0070.01015.03
7.4.00.0040.00915.01
7.3.330.0000.00513.00
7.3.320.0070.00013.12
7.3.310.0000.00716.25
7.3.300.0040.00416.26
7.3.290.0070.00816.27
7.3.280.0100.00816.30
7.3.270.0030.01317.40
7.3.260.0030.01316.59
7.3.250.0060.01316.48
7.3.240.0110.00516.42
7.3.230.0100.00716.39
7.3.210.0130.00416.45
7.3.200.0130.00316.46
7.3.190.0030.01316.30
7.3.180.0090.00916.56
7.3.170.0120.00916.27
7.3.160.0070.00916.48
7.3.130.0000.01714.84
7.3.120.0100.00714.61
7.3.110.0140.00315.13
7.3.100.0040.00814.66
7.3.90.0000.01015.02
7.3.80.0070.00714.93
7.3.70.0070.00414.48
7.3.60.0000.01314.91
7.3.50.0110.00414.91
7.3.40.0040.00714.69
7.3.30.0040.00414.91
7.3.20.0060.00616.86
7.3.10.0100.00316.71
7.3.00.0070.00716.54
7.2.330.0070.01016.77
7.2.320.0130.01016.61
7.2.310.0150.00616.58
7.2.300.0110.00616.38
7.2.290.0030.01416.67
7.2.260.0030.01615.22
7.2.250.0130.00314.93
7.2.240.0110.00315.14
7.2.230.0060.00615.23
7.2.220.0030.01014.80
7.2.210.0080.00415.15
7.2.200.0000.01214.71
7.2.190.0040.00414.87
7.2.180.0030.00614.98
7.2.170.0070.00714.84
7.2.160.0040.01114.97
7.2.150.0030.01416.85
7.2.140.0070.00716.86
7.2.130.0020.01116.96
7.2.120.0090.00716.87
7.2.110.0070.00616.81
7.2.100.0080.00716.83
7.2.90.0060.00816.73
7.2.80.0070.00416.84
7.2.70.0080.00717.01
7.2.60.0060.00816.83
7.2.50.0050.00616.93
7.2.40.0100.00516.92
7.2.30.0020.01216.80
7.2.20.0060.01016.93
7.2.10.0050.00816.67
7.2.00.0060.00617.68
7.1.330.0090.00615.56
7.1.320.0040.00715.99
7.1.310.0030.01015.65
7.1.300.0030.01315.71
7.1.290.0040.00715.59
7.1.280.0030.01015.74
7.1.270.0060.00715.96
7.1.260.0080.00415.93
7.1.250.0060.00315.90
7.1.240.0050.00815.82
7.1.230.0040.01115.64
7.1.220.0070.00315.77
7.1.210.0050.00715.58
7.1.200.0130.00615.69
7.1.190.0050.01115.75
7.1.180.0040.00915.74
7.1.170.0090.00515.54
7.1.160.0070.00315.77
7.1.150.0020.01015.89
7.1.140.0060.00715.79
7.1.130.0050.00715.74
7.1.120.0080.00415.58
7.1.110.0070.00415.61
7.1.100.0080.01016.43
7.1.90.0070.00715.85
7.1.80.0030.01015.79
7.1.70.0070.00316.25
7.1.60.0080.00917.04
7.1.50.0060.01016.10
7.1.40.0080.00515.91
7.1.30.0030.01115.82
7.1.20.0090.00715.69
7.1.10.0050.00915.58
7.1.00.0040.02917.99
7.0.330.0070.00515.35
7.0.320.0030.00615.45
7.0.310.0020.01215.39
7.0.300.0070.00415.40
7.0.290.0070.00615.14
7.0.280.0040.01115.28
7.0.270.0060.00615.30
7.0.260.0070.00615.27
7.0.250.0050.00515.38
7.0.240.0040.00515.35
7.0.230.0020.01015.26
7.0.220.0060.01015.39
7.0.210.0070.00615.39
7.0.200.0050.00715.61
7.0.190.0020.01215.44
7.0.180.0070.00715.50
7.0.170.0030.01015.37
7.0.160.0030.00815.35
7.0.150.0050.01215.26
7.0.140.0060.00715.32
7.0.130.0030.00815.35
7.0.120.0060.00715.35
7.0.110.0040.00715.29
7.0.100.0200.03016.94
7.0.90.0210.03116.74
7.0.80.0230.02816.84
7.0.70.0200.03416.88
7.0.60.0300.02316.82
7.0.50.0230.02816.95
7.0.40.0060.03115.69
7.0.30.0080.02615.61
7.0.20.0060.03315.63
7.0.10.0100.02915.56
7.0.00.0110.02915.65
5.6.400.0070.00314.48
5.6.390.0040.01114.28
5.6.380.0090.00514.30
5.6.370.0050.01014.41
5.6.360.0050.00714.23
5.6.350.0050.01014.28
5.6.340.0070.00414.26
5.6.330.0060.00614.11
5.6.320.0050.00714.54
5.6.310.0080.00514.22
5.6.300.0070.00714.29
5.6.290.0080.00714.45
5.6.280.0050.01916.43
5.6.270.0060.00814.22
5.6.260.0040.01114.34
5.6.250.0050.03716.38
5.6.240.0050.03516.34
5.6.230.0040.03216.30
5.6.220.0090.02816.30
5.6.210.0090.03116.48
5.6.200.0100.02916.47
5.6.190.0030.03216.61
5.6.180.0070.03016.60
5.6.170.0070.03016.54
5.6.160.0090.03016.62
5.6.150.0090.03016.34
5.6.140.0080.03116.49
5.6.130.0040.03316.48
5.6.120.0050.03016.52
5.6.110.0060.03216.51
5.6.100.0140.02716.42
5.6.90.0110.02916.54
5.6.80.0050.03516.22
5.6.70.0060.02216.38
5.6.60.0110.02416.40
5.6.50.0030.02616.30
5.6.40.0060.03416.25
5.6.30.0060.03216.27
5.6.20.0080.02016.36
5.6.10.0080.02816.29
5.6.00.0070.03116.20
5.5.380.0060.03215.19
5.5.370.0080.03015.02
5.5.360.0090.03015.24
5.5.350.0060.03115.27
5.5.340.0040.03515.43
5.5.330.0080.03015.36
5.5.320.0090.03015.31
5.5.310.0060.02915.32
5.5.300.0080.02815.46
5.5.290.0120.02715.36
5.5.280.0090.02715.47
5.5.270.0070.02715.44
5.5.260.0080.02315.40
5.5.250.0050.03315.19
5.5.240.0080.02615.06
5.5.230.0020.03414.95
5.5.220.0080.02914.91
5.5.210.0070.03014.98
5.5.200.0100.02515.05
5.5.190.0050.03215.29
5.5.180.0060.03015.20
5.5.170.0040.00712.68
5.5.160.0050.03015.13
5.5.150.0080.02915.02
5.5.140.0070.03015.17
5.5.130.0050.03315.03
5.5.120.0060.03115.09
5.5.110.0050.02115.19
5.5.100.0040.03015.05
5.5.90.0070.02015.10
5.5.80.0070.03114.96
5.5.70.0110.02515.04
5.5.60.0060.01915.02
5.5.50.0070.02814.88
5.5.40.0060.02914.97
5.5.30.0080.02815.04
5.5.20.0070.03015.09
5.5.10.0040.03115.16
5.5.00.0070.02815.08

preferences:
58.23 ms | 400 KiB | 5 Q