3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1,2,3); $b=&$a; foreach($a as $k=>$v) { echo "$v\n"; unset($a[2]); } 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)
8.3.70.0120.00916.50
8.3.60.0100.01016.75
8.3.50.0100.00522.10
8.3.40.0150.00018.85
8.3.30.0110.00418.75
8.3.20.0040.00420.35
8.3.10.0000.00821.77
8.3.00.0050.00319.97
8.2.180.0070.00716.63
8.2.170.0150.00022.96
8.2.160.0070.00720.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0050.00220.81
8.2.110.0030.00619.25
8.2.100.0080.00417.91
8.2.90.0040.00417.75
8.2.80.0000.00818.86
8.2.70.0040.00417.75
8.2.60.0040.00417.50
8.2.50.0050.00318.16
8.2.40.0060.00319.66
8.2.30.0040.00420.62
8.2.20.0040.00417.74
8.2.10.0070.00018.13
8.2.00.0070.00017.99
8.1.280.0100.00325.92
8.1.270.0070.00024.66
8.1.260.0000.00826.35
8.1.250.0050.00328.09
8.1.240.0100.00022.00
8.1.230.0090.00320.84
8.1.220.0040.00418.72
8.1.210.0090.00018.77
8.1.200.0080.00017.48
8.1.190.0040.00417.23
8.1.180.0070.00418.10
8.1.170.0000.00717.62
8.1.160.0000.00720.72
8.1.150.0040.00418.91
8.1.140.0050.00319.65
8.1.130.0030.00317.69
8.1.120.0040.00417.53
8.1.110.0000.00717.43
8.1.100.0040.00417.49
8.1.90.0040.00417.47
8.1.80.0040.00417.49
8.1.70.0030.00317.38
8.1.60.0040.00417.45
8.1.50.0000.00817.55
8.1.40.0040.00417.54
8.1.30.0080.00017.61
8.1.20.0020.00517.64
8.1.10.0050.00317.48
8.1.00.0060.00317.49
8.0.300.0070.00019.93
8.0.290.0050.00316.75
8.0.280.0070.00018.31
8.0.270.0000.00717.25
8.0.260.0030.00317.16
8.0.250.0030.00316.92
8.0.240.0030.00316.92
8.0.230.0070.00016.91
8.0.220.0040.00416.88
8.0.210.0040.00416.87
8.0.200.0030.00316.91
8.0.190.0040.00716.99
8.0.180.0000.00716.82
8.0.170.0040.00416.80
8.0.160.0040.00716.98
8.0.150.0040.00316.88
8.0.140.0000.00916.82
8.0.130.0030.00313.30
8.0.120.0040.00416.79
8.0.110.0070.00016.91
8.0.100.0000.00716.68
8.0.90.0070.00016.81
8.0.80.0060.00916.86
8.0.70.0000.00716.80
8.0.60.0030.00516.83
8.0.50.0000.00717.00
8.0.30.0050.01316.99
8.0.20.0120.00717.41
8.0.10.0040.00416.80
8.0.00.0060.01116.83
7.4.330.0000.00516.71
7.4.320.0030.00316.42
7.4.300.0040.00416.49
7.4.290.0040.00416.42
7.4.280.0030.00616.49
7.4.270.0000.00716.64
7.4.260.0030.00316.46
7.4.250.0040.00416.57
7.4.240.0050.00216.57
7.4.230.0070.00016.61
7.4.220.0060.01016.49
7.4.210.0000.01416.57
7.4.200.0000.00716.38
7.4.160.0100.00616.46
7.4.150.0150.00417.40
7.4.140.0120.00817.86
7.4.130.0060.01216.59
7.4.120.0110.00616.40
7.4.110.0060.01016.58
7.4.100.0070.01116.22
7.4.90.0140.00416.42
7.4.80.0120.00619.39
7.4.70.0120.00916.42
7.4.60.0060.00916.46
7.4.50.0100.00316.37
7.4.40.0110.00616.41
7.4.30.0130.00716.36
7.4.20.0130.00516.46
7.4.10.0100.01115.79
7.4.00.0080.00815.56
7.3.330.0050.00013.09
7.3.320.0020.00213.06
7.3.310.0030.00316.39
7.3.300.0070.00016.30
7.3.290.0030.00316.28
7.3.280.0050.01216.26
7.3.270.0070.01117.40
7.3.260.0060.01016.34
7.3.250.0080.01116.22
7.3.240.0050.01216.56
7.3.230.0100.00716.46
7.3.210.0030.01316.59
7.3.200.0050.01316.25
7.3.190.0060.01016.47
7.3.180.0070.01416.19
7.3.170.0100.01316.34
7.3.160.0110.00416.28
7.3.150.0160.00616.42
7.3.140.0130.01316.45
7.3.130.0090.00815.51
7.3.120.0090.01015.43
7.3.110.0080.01015.28
7.3.100.0060.01015.35
7.3.90.0090.00615.24
7.3.80.0050.00915.23
7.3.70.0070.00715.32
7.3.60.0090.00515.11
7.3.50.0080.00915.22
7.3.40.0080.01015.30
7.3.30.0110.00915.39
7.3.20.0060.00916.55
7.3.10.0050.01416.56
7.3.00.0040.01316.42
7.2.330.0130.00716.59
7.2.320.0160.00716.70
7.2.310.0130.00616.58
7.2.300.0030.01316.39
7.2.290.0060.01116.69
7.2.280.0130.00616.68
7.2.270.0150.00416.69
7.2.260.0100.01115.82
7.2.250.0090.01115.71
7.2.240.0060.01215.39
7.2.230.0100.00615.35
7.2.220.0090.00715.47
7.2.210.0070.01015.65
7.2.200.0060.00915.38
7.2.190.0010.01515.38
7.2.180.0090.00715.44
7.2.170.0070.00815.41
7.2.160.0080.00615.49
7.2.150.0090.00716.82
7.2.140.0050.01116.72
7.2.130.0100.00716.73
7.2.120.0090.00816.76
7.2.110.0090.00716.75
7.2.100.0080.01016.57
7.2.90.0080.00816.77
7.2.80.0080.01016.67
7.2.70.0020.01416.85
7.2.60.0080.00816.81
7.2.50.0130.00416.69
7.2.40.0070.00616.82
7.2.30.0050.00916.68
7.2.20.0060.00916.71
7.2.10.0050.01416.63
7.2.00.0080.00917.43
7.1.330.0060.00915.62
7.1.320.0090.00515.67
7.1.310.0100.00615.70
7.1.300.0090.00615.74
7.1.290.0060.01115.70
7.1.280.0070.01015.79
7.1.270.0070.00615.77
7.1.260.0090.00915.69
7.1.250.0050.01115.73
7.1.240.0040.01615.46
7.1.230.0080.01015.72
7.1.220.0070.01015.77
7.1.210.0060.00915.65
7.1.200.0160.01215.68
7.1.190.0050.01115.70
7.1.180.0120.00415.79
7.1.170.0020.01415.75
7.1.160.0040.01315.50
7.1.150.0100.00815.46
7.1.140.0140.00615.63
7.1.130.0190.00315.64
7.1.120.0090.00815.58
7.1.110.0040.01215.59
7.1.100.0030.01116.17
7.1.90.0060.01015.63
7.1.80.0070.00815.66
7.1.70.0070.00516.06
7.1.60.0060.01316.96
7.1.50.0100.01022.10
7.1.40.0070.00915.51
7.1.30.0100.00615.49
7.1.20.0110.00315.63
7.1.10.0120.00215.63
7.1.00.0070.02717.90
7.0.330.0070.00715.31
7.0.320.0100.00515.31
7.0.310.0080.00815.36
7.0.300.0050.01215.32
7.0.290.0070.00915.13
7.0.280.0120.00715.15
7.0.270.0050.01615.20
7.0.260.0060.00915.32
7.0.250.0130.00415.24
7.0.240.0090.00815.28
7.0.230.0090.00615.20
7.0.220.0080.00815.02
7.0.210.0110.01015.05
7.0.200.0070.00815.75
7.0.190.0040.01115.17
7.0.180.0060.01115.18
7.0.170.0130.00615.02
7.0.160.0110.00515.35
7.0.150.0060.01115.39
7.0.140.0100.00815.30
7.0.130.0040.00915.40
7.0.120.0060.00515.46
7.0.110.0100.00515.40
7.0.100.0070.01015.26
7.0.90.0080.00615.45
7.0.80.0070.00715.22
7.0.70.0060.00715.33
7.0.60.0080.03216.90
7.0.50.0080.01916.22
7.0.40.0090.03016.19
7.0.30.0140.02216.19
7.0.20.0080.02516.24
7.0.10.0030.02316.26
7.0.00.0100.03016.14
5.6.400.0100.01214.90
5.6.390.0060.01015.06
5.6.380.0070.01015.25
5.6.370.0070.01215.29
5.6.360.0020.01814.94
5.6.350.0050.01014.87
5.6.340.0060.01415.03
5.6.330.0050.01214.97
5.6.320.0070.01015.01
5.6.310.0100.01014.96
5.6.300.0080.01015.18
5.6.290.0160.00315.20
5.6.280.0050.01616.93
5.6.270.0070.00915.15
5.6.260.0070.00715.01
5.6.250.0040.01315.00
5.6.240.0070.00915.03
5.6.230.0100.01015.12
5.6.220.0050.01015.08
5.6.210.0060.01917.05
5.6.200.0140.02116.20
5.6.190.0040.02616.96
5.6.180.0200.03016.84
5.6.170.0060.02416.89
5.6.160.0070.01916.83
5.6.150.0090.02516.14
5.6.140.0090.03115.98
5.6.130.0090.02016.09
5.6.120.0050.02617.04
5.6.110.0070.02117.02
5.6.100.0120.03117.06
5.6.90.0060.03617.04
5.6.80.0080.03016.84
5.6.70.0050.01414.82
5.6.60.0070.01114.83
5.6.50.0080.00815.04
5.6.40.0030.01314.99
5.6.30.0060.01214.96
5.6.20.0100.00814.97
5.6.10.0090.00815.00
5.6.00.0100.01215.07
5.5.380.0210.00416.01
5.5.370.0080.01715.84
5.5.360.0150.01215.79
5.5.350.0160.04618.12
5.5.340.0140.02216.77
5.5.330.0060.04717.90
5.5.320.0180.02818.08
5.5.310.0200.02217.89
5.5.300.0120.02916.78
5.5.290.0100.02716.97
5.5.280.0090.04418.38
5.5.270.0120.02918.26
5.5.260.0090.04118.23
5.5.250.0090.03418.18
5.5.240.0180.04117.93
5.5.230.0210.00515.79
5.5.220.0190.00815.90
5.5.210.0230.01015.91
5.5.200.0180.01115.73
5.5.190.0090.01615.98
5.5.180.0190.01015.99
5.5.170.0180.01315.68
5.5.160.0210.01315.62
5.5.150.0130.01315.76
5.5.140.0250.00415.43
5.5.130.0150.01215.65
5.5.120.0210.00715.61
5.5.110.0130.01715.59
5.5.100.0110.01915.85
5.5.90.0060.01815.63
5.5.80.0180.01215.40
5.5.70.0200.00815.81
5.5.60.0130.01715.66
5.5.50.0130.01315.96
5.5.40.0230.00615.75
5.5.30.0120.01215.88
5.5.20.0120.01515.73
5.5.10.0220.00915.63
5.5.00.0140.01115.77

preferences:
54.94 ms | 401 KiB | 5 Q