3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1,2,3); $b = &$a; foreach($a as $i => $v) { echo "$v\n"; unset($a[i]); } var_dump($a); var_dump($b);

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)
8.3.60.0140.00716.75
8.3.50.0110.00418.05
8.3.40.0060.00918.88
8.3.30.0090.00618.80
8.3.20.0030.00620.29
8.3.10.0030.00523.53
8.3.00.0000.00819.13
8.2.180.0080.00818.41
8.2.170.0070.00722.96
8.2.160.0140.00020.40
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00417.38
8.2.120.0030.00626.35
8.2.110.0140.00322.20
8.2.100.0090.00317.80
8.2.90.0000.00819.05
8.2.80.0040.00417.97
8.2.70.0070.00317.50
8.2.60.0040.00417.93
8.2.50.0030.00618.07
8.2.40.0060.00321.09
8.2.30.0050.00520.54
8.2.20.0040.00417.66
8.2.10.0030.00618.23
8.2.00.0080.00017.99
8.1.280.0060.01225.92
8.1.270.0040.00422.24
8.1.260.0030.00528.09
8.1.250.0070.00428.09
8.1.240.0030.00722.27
8.1.230.0110.00017.66
8.1.220.0000.00817.76
8.1.210.0030.00618.77
8.1.200.0060.00317.35
8.1.190.0000.00817.70
8.1.180.0000.00818.10
8.1.170.0040.00418.71
8.1.160.0080.00022.09
8.1.150.0040.00418.93
8.1.140.0030.00619.50
8.1.130.0000.00717.70
8.1.120.0070.00017.49
8.1.110.0000.00717.49
8.1.100.0000.00717.38
8.1.90.0060.00317.41
8.1.80.0050.00317.38
8.1.70.0000.00717.37
8.1.60.0000.00717.57
8.1.50.0040.00417.48
8.1.40.0060.00317.50
8.1.30.0000.00817.59
8.1.20.0030.00517.58
8.1.10.0030.00517.42
8.1.00.0000.00817.50
8.0.300.0000.00818.77
8.0.290.0040.00416.75
8.0.280.0050.00218.36
8.0.270.0000.00717.23
8.0.260.0030.00317.18
8.0.250.0000.00616.99
8.0.240.0000.00716.89
8.0.230.0020.00516.91
8.0.220.0070.00316.86
8.0.210.0070.00017.02
8.0.200.0030.00317.01
8.0.190.0040.00416.98
8.0.180.0080.00017.03
8.0.170.0000.00816.99
8.0.160.0000.00817.00
8.0.150.0000.00716.83
8.0.140.0000.00816.88
8.0.130.0030.00313.34
8.0.120.0040.00416.86
8.0.110.0020.00516.90
8.0.100.0050.00316.95
8.0.90.0030.00316.84
8.0.80.0030.01216.84
8.0.70.0000.00716.95
8.0.60.0070.00017.02
8.0.50.0040.00416.73
8.0.30.0130.00716.81
8.0.20.0110.00717.40
8.0.10.0040.00417.15
8.0.00.0040.01316.70
7.4.330.0000.00516.84
7.4.320.0030.00316.55
7.4.300.0060.00016.51
7.4.290.0080.00016.46
7.4.280.0000.00716.45
7.4.270.0030.00316.62
7.4.260.0000.00816.63
7.4.250.0030.00516.48
7.4.240.0040.00416.54
7.4.230.0070.00016.61
7.4.220.0130.01316.54
7.4.210.0090.00916.59
7.4.200.0050.00316.41
7.4.160.0070.01016.52
7.4.150.0130.00317.40
7.4.140.0100.01317.86
7.4.130.0090.00916.57
7.4.120.0110.01016.58
7.4.110.0140.00516.66
7.4.100.0160.00616.55
7.4.90.0170.00016.70
7.4.80.0120.00819.39
7.4.70.0070.01416.57
7.4.60.0060.01016.50
7.4.50.0060.00916.54
7.4.40.0180.00316.36
7.4.30.0060.01216.50
7.4.10.0030.01314.99
7.4.00.0080.00914.89
7.3.330.0030.00313.07
7.3.320.0030.00313.17
7.3.310.0070.00016.39
7.3.300.0030.00316.32
7.3.290.0080.00816.38
7.3.280.0080.00916.30
7.3.270.0100.00717.40
7.3.260.0060.01916.60
7.3.250.0080.00916.42
7.3.240.0130.00616.47
7.3.230.0120.00416.39
7.3.210.0130.00616.49
7.3.200.0170.00816.43
7.3.190.0060.01016.51
7.3.180.0070.01016.41
7.3.170.0170.00616.36
7.3.160.0120.00316.48
7.3.130.0070.01015.00
7.3.120.0070.01114.82
7.3.110.0060.01214.88
7.3.100.0040.00714.91
7.3.90.0090.00014.78
7.3.80.0070.00714.95
7.3.70.0080.00515.00
7.3.60.0000.01114.97
7.3.50.0040.00714.58
7.3.40.0040.01114.84
7.3.30.0100.00314.91
7.3.20.0070.00716.48
7.3.10.0070.00816.63
7.3.00.0070.01016.63
7.2.330.0060.01116.78
7.2.320.0100.01316.61
7.2.310.0040.01216.75
7.2.300.0090.00916.36
7.2.290.0110.00816.72
7.2.260.0110.00415.13
7.2.250.0090.00715.20
7.2.240.0060.00914.95
7.2.230.0060.00915.16
7.2.220.0090.00615.23
7.2.210.0070.01014.83
7.2.200.0100.00714.72
7.2.190.0110.00014.92
7.2.180.0120.00314.84
7.2.170.0030.01414.98
7.2.160.0060.00414.93
7.2.150.0060.01016.92
7.2.140.0060.00916.96
7.2.130.0060.00816.89
7.2.120.0060.00916.78
7.2.110.0040.01316.68
7.2.100.0040.01516.73
7.2.90.0050.01117.04
7.2.80.0020.01216.90
7.2.70.0080.00416.95
7.2.60.0070.00816.89
7.2.50.0060.00716.93
7.2.40.0030.01016.81
7.2.30.0050.00916.91
7.2.20.0050.00516.72
7.2.10.0060.00916.85
7.2.00.0050.00617.74
7.1.330.0090.00615.83
7.1.320.0070.01015.64
7.1.310.0070.00315.91
7.1.300.0100.00315.77
7.1.290.0100.00315.84
7.1.280.0060.00915.86
7.1.270.0000.00815.80
7.1.260.0070.00715.93
7.1.250.0020.01215.85
7.1.240.0070.01015.74
7.1.230.0030.01315.71
7.1.220.0000.01315.61
7.1.210.0000.01515.72
7.1.200.0060.00615.59
7.1.190.0060.00915.80
7.1.180.0000.00915.84
7.1.170.0050.00315.98
7.1.160.0030.00615.80
7.1.150.0040.01115.90
7.1.140.0040.01115.72
7.1.130.0070.00715.81
7.1.120.0030.01015.86
7.1.110.0070.00715.63
7.1.100.0010.00917.03
7.1.90.0080.00615.77
7.1.80.0000.01615.85
7.1.70.0050.00616.61
7.1.60.0080.00617.45
7.1.50.0020.01516.51
7.1.40.0000.01715.91
7.1.30.0000.01415.71
7.1.20.0000.01615.89
7.1.10.0040.01115.90
7.1.00.0080.03818.98
7.0.330.0070.00415.64
7.0.320.0040.00715.29
7.0.310.0030.00615.50
7.0.300.0090.00315.41
7.0.290.0110.00315.36
7.0.280.0060.00315.39
7.0.270.0000.01415.51
7.0.260.0070.00715.35
7.0.250.0040.01115.21
7.0.240.0030.01015.44
7.0.230.0070.00715.34
7.0.220.0080.00815.65
7.0.210.0030.01015.44
7.0.200.0060.00616.10
7.0.190.0030.01015.43
7.0.180.0040.01415.46
7.0.170.0090.00315.41
7.0.160.0040.01115.44
7.0.150.0060.00615.54
7.0.140.0100.00615.17
7.0.130.0130.00015.17
7.0.120.0000.01315.48
7.0.110.0040.00715.40
7.0.100.0070.00715.30
7.0.90.0110.00315.34
7.0.80.0060.00315.50
7.0.70.0040.00415.42
7.0.60.0120.04017.67
7.0.50.0030.03616.73
7.0.40.0050.03916.85
7.0.30.0150.02216.77
7.0.20.0120.02916.77
7.0.10.0100.02616.90
7.0.00.0040.02316.71
5.6.400.0000.01614.49
5.6.390.0000.01014.08
5.6.380.0040.00814.13
5.6.370.0040.01114.16
5.6.360.0100.00314.63
5.6.350.0000.01514.23
5.6.340.0030.01014.26
5.6.330.0030.01214.20
5.6.320.0040.01114.43
5.6.310.0030.00914.46
5.6.300.0040.01214.45
5.6.290.0070.00613.96
5.6.280.0070.02917.86
5.6.270.0060.00314.65
5.6.260.0080.00414.45
5.6.250.0000.01414.28
5.6.240.0030.00714.12
5.6.230.0000.00814.38
5.6.220.0080.00814.42
5.6.210.0090.04017.44
5.6.200.0080.02416.20
5.6.190.0060.04517.33
5.6.180.0210.04217.29
5.6.170.0150.02417.38
5.6.160.0070.02717.36
5.6.150.0030.02516.14
5.6.140.0080.02816.33
5.6.130.0070.02816.23
5.6.120.0030.04717.83
5.6.110.0080.04517.69
5.6.100.0040.02217.66
5.6.90.0020.03117.57
5.6.80.0090.04217.38
5.6.70.0070.01114.13
5.6.60.0030.01014.38
5.6.50.0050.00313.81
5.6.40.0060.00913.96
5.6.30.0030.00714.10
5.6.20.0110.00414.01
5.6.10.0070.01114.11
5.6.00.0000.01114.13
5.5.380.0070.00714.19
5.5.370.0070.00713.93
5.5.360.0040.00814.32
5.5.350.0130.02917.47
5.5.340.0130.02016.08
5.5.330.0030.04217.24
5.5.320.0050.02517.18
5.5.310.0130.04217.25
5.5.300.0120.03816.04
5.5.290.0050.02616.12
5.5.280.0050.02217.65
5.5.270.0050.02417.50
5.5.260.0090.03917.54
5.5.250.0020.02917.47
5.5.240.1320.02517.06
5.5.230.0070.00714.08
5.5.220.0130.00014.27
5.5.210.0070.00713.95
5.5.200.0000.01614.05
5.5.190.0000.01913.74
5.5.180.0030.01213.80
5.5.170.0000.01513.82
5.5.160.0030.01014.11
5.5.150.0100.00313.89
5.5.140.0040.00713.98
5.5.130.0030.00714.09
5.5.120.0120.00013.96
5.5.110.0090.00614.35
5.5.100.0060.00614.37
5.5.90.0070.00314.17
5.5.80.0090.00914.28
5.5.70.0000.01814.39
5.5.60.0040.01114.17
5.5.50.0100.00313.96
5.5.40.0030.01014.14
5.5.30.0000.01014.01
5.5.20.0030.01014.16
5.5.10.0030.00813.77
5.5.00.0110.00014.28

preferences:
60.68 ms | 400 KiB | 5 Q