3v4l.org

run code in 300+ PHP versions simultaneously
<?php $b = [1, 2, 3]; foreach($b ?: [] as &$v) { $v = $v*2; unset($v); } var_dump($b[0]);

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)
8.3.70.0090.00916.58
8.3.60.0080.00816.63
8.3.50.0130.00621.92
8.3.40.0120.00618.72
8.3.30.0070.00718.57
8.3.20.0000.00720.16
8.3.10.0000.00823.70
8.3.00.0090.00019.20
8.2.180.0180.00418.42
8.2.170.0110.00322.96
8.2.160.0130.00020.52
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00919.26
8.2.120.0040.00426.35
8.2.110.0000.00920.57
8.2.100.0140.00017.72
8.2.90.0040.00419.30
8.2.80.0000.00917.97
8.2.70.0000.00817.63
8.2.60.0060.00317.93
8.2.50.0080.00018.07
8.2.40.0040.00419.46
8.2.30.0030.00520.55
8.2.20.0060.00317.68
8.2.10.0040.00418.02
8.2.00.0060.00317.96
8.1.280.0070.00725.92
8.1.270.0030.00623.91
8.1.260.0030.00628.09
8.1.250.0000.00728.09
8.1.240.0040.00822.14
8.1.230.0030.00920.85
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0030.00617.48
8.1.190.0040.00417.36
8.1.180.0000.00818.10
8.1.170.0000.00718.77
8.1.160.0000.00722.05
8.1.150.0030.00518.89
8.1.140.0030.00519.54
8.1.130.0000.00717.60
8.1.120.0000.00717.37
8.1.110.0000.00717.34
8.1.100.0070.00017.38
8.1.90.0000.00717.43
8.1.80.0000.00917.49
8.1.70.0070.00017.39
8.1.60.0000.00817.55
8.1.50.0040.00417.41
8.1.40.0000.00817.54
8.1.30.0000.00917.67
8.1.20.0020.00517.61
8.1.10.0000.00817.50
8.1.00.0030.00617.38
8.0.300.0040.00418.77
8.0.290.0030.00316.75
8.0.280.0040.00418.49
8.0.270.0000.00717.17
8.0.260.0030.00317.25
8.0.250.0070.00017.01
8.0.240.0070.00016.99
8.0.230.0080.00016.90
8.0.220.0000.00716.87
8.0.210.0040.00416.78
8.0.200.0000.00616.85
8.0.190.0000.00816.81
8.0.180.0070.00016.93
8.0.170.0030.00616.87
8.0.160.0000.00716.96
8.0.150.0080.00016.83
8.0.140.0040.00416.88
8.0.130.0050.00313.32
8.0.120.0000.00816.84
8.0.110.0040.00416.86
8.0.100.0050.00216.87
8.0.90.0030.00316.80
8.0.80.0060.01016.86
8.0.70.0000.00716.95
8.0.60.0000.00817.00
8.0.50.0070.00016.95
8.0.30.0080.01017.01
8.0.20.0110.00717.40
8.0.10.0070.00016.87
8.0.00.0110.00816.66
7.4.330.0050.00016.76
7.4.320.0060.00016.52
7.4.300.0070.00016.50
7.4.290.0040.00416.55
7.4.280.0000.00716.49
7.4.270.0040.00416.58
7.4.260.0040.00416.47
7.4.250.0000.00816.56
7.4.240.0000.00716.53
7.4.230.0030.00316.34
7.4.220.0120.00616.62
7.4.210.0040.01116.63
7.4.200.0000.00716.63
7.4.160.0130.00316.63
7.4.150.0180.00017.40
7.4.140.0090.00917.86
7.4.130.0110.00716.63
7.4.120.0130.00716.62
7.4.110.0090.01016.49
7.4.100.0070.01416.32
7.4.90.0060.01216.59
7.4.80.0100.01019.39
7.4.70.0130.00316.48
7.4.60.0090.00616.47
7.4.50.0120.00316.62
7.4.40.0070.01016.69
7.4.30.0090.00916.42
7.4.10.0070.00714.86
7.4.00.0080.01014.90
7.3.330.0050.00013.26
7.3.320.0030.00313.25
7.3.310.0000.00716.41
7.3.300.0040.00416.30
7.3.290.0090.00716.32
7.3.280.0080.01116.34
7.3.270.0140.00317.40
7.3.260.0120.00416.30
7.3.250.0030.01416.36
7.3.240.0110.00516.40
7.3.230.0090.00616.50
7.3.210.0170.00416.31
7.3.200.0110.01116.66
7.3.190.0060.01716.63
7.3.180.0060.00916.46
7.3.170.0070.01316.61
7.3.160.0110.00716.54
7.3.130.0070.00715.12
7.3.120.0060.01214.82
7.3.110.0040.01215.13
7.3.100.0130.00314.70
7.3.90.0060.00914.89
7.3.80.0110.00014.61
7.3.70.0040.01114.94
7.3.60.0040.00914.79
7.3.50.0060.00614.46
7.3.40.0050.00514.86
7.3.30.0050.00514.94
7.3.20.0070.00416.56
7.3.10.0000.01416.85
7.3.00.0070.00316.86
7.2.330.0130.00316.65
7.2.320.0070.01016.84
7.2.310.0030.01316.48
7.2.300.0130.00416.59
7.2.290.0140.00916.50
7.2.260.0060.01215.04
7.2.250.0030.01415.31
7.2.240.0070.00715.23
7.2.230.0100.00315.05
7.2.220.0040.01115.19
7.2.210.0030.01014.96
7.2.200.0060.00915.07
7.2.190.0090.00615.15
7.2.180.0090.00315.16
7.2.170.0030.00714.94
7.2.160.0000.01315.28
7.2.150.0000.01517.00
7.2.140.0030.01016.83
7.2.130.0000.01616.66
7.2.120.0030.01016.88
7.2.110.0110.00416.80
7.2.100.0060.00917.07
7.2.90.0050.00516.99
7.2.80.0040.01117.11
7.2.70.0030.00616.86
7.2.60.0090.00617.04
7.2.50.0000.01316.69
7.2.40.0080.00817.05
7.2.30.0030.00916.92
7.2.20.0090.00316.92
7.2.10.0030.01016.86
7.2.00.0030.00717.98
7.1.330.0030.01015.86
7.1.320.0030.01415.77
7.1.310.0070.00415.86
7.1.300.0030.00915.71
7.1.290.0060.00815.75
7.1.280.0080.00415.75
7.1.270.0000.00815.73
7.1.260.0030.00715.82
7.1.250.0060.01216.02
7.1.240.0040.00415.81
7.1.230.0000.01215.81
7.1.220.0080.00315.95
7.1.210.0060.00615.86
7.1.200.0040.00915.93
7.1.190.0090.00615.85
7.1.180.0040.00715.54
7.1.170.0040.00415.65
7.1.160.0030.01115.59
7.1.150.0040.00815.70
7.1.140.0060.00315.61
7.1.130.0070.00715.98
7.1.120.0060.00315.92
7.1.110.0000.01315.86
7.1.100.0040.00817.03
7.1.90.0040.00815.56
7.1.80.0080.00015.56
7.1.70.0050.00816.44
7.1.60.0050.00717.58
7.1.50.0050.01516.23
7.1.40.0100.00315.85
7.1.30.0070.01015.94
7.1.20.0030.01015.83
7.1.10.0100.00615.95
7.1.00.0020.04319.09
7.0.330.0040.01115.48
7.0.320.0000.01215.27
7.0.310.0050.00315.57
7.0.300.0120.00015.43
7.0.290.0070.00715.29
7.0.280.0030.01215.45
7.0.270.0000.01115.50
7.0.260.0060.00315.21
7.0.250.0000.01315.42
7.0.240.0060.00815.42
7.0.230.0080.00415.56
7.0.220.0000.01615.53
7.0.210.0100.00615.20
7.0.200.0160.01015.13
7.0.190.0070.00715.45
7.0.180.0070.00315.23
7.0.170.0110.00315.56
7.0.160.0040.01215.57
7.0.150.0100.00015.61
7.0.140.0100.00615.51
7.0.130.0040.00915.57
7.0.120.0030.01015.64
7.0.110.0060.00315.55
7.0.100.0070.00415.51
7.0.90.0040.01215.11
7.0.80.0030.01015.51
7.0.70.0070.00715.71
7.0.60.0080.03817.66
7.0.50.0050.04516.67
7.0.40.0060.03816.69
7.0.30.0180.04316.68
7.0.20.0220.04016.95
7.0.10.0080.04416.80
7.0.00.0070.04516.72
5.6.400.0100.00314.30
5.6.390.0030.01314.59
5.6.380.0060.00614.49
5.6.370.0070.00414.47
5.6.360.0040.01114.41
5.6.350.0000.00914.59
5.6.340.0060.00914.42
5.6.330.0000.00814.85
5.6.320.0090.00614.36
5.6.310.0000.01414.50
5.6.300.0030.01213.92
5.6.290.0040.01114.36
5.6.280.0020.03417.71
5.6.270.0070.00714.52
5.6.260.0000.01214.02
5.6.250.0000.01214.41
5.6.240.0060.00314.35
5.6.230.0100.00314.27
5.6.220.0040.01114.45
5.6.210.0030.04417.27
5.6.200.0050.02316.19
5.6.190.0050.04517.46
5.6.180.0120.03717.29
5.6.170.0120.03717.39
5.6.160.0100.04117.29
5.6.150.0040.03616.22
5.6.140.0080.04216.40
5.6.130.0050.04616.23
5.6.120.0120.04217.80
5.6.110.0100.04417.71
5.6.100.0030.03517.74
5.6.90.0070.03017.71
5.6.80.0060.03917.38
5.6.70.0060.00914.36
5.6.60.0030.00614.14
5.6.50.0040.01114.27
5.6.40.0030.00614.43
5.6.30.0070.00314.16
5.6.20.0030.01414.49
5.6.10.0070.00714.66
5.6.00.0090.00614.13
5.5.380.0120.00014.51
5.5.370.0090.00614.01
5.5.360.0000.01514.34
5.5.350.2120.02717.29
5.5.340.0060.04616.20
5.5.330.0050.02917.50
5.5.320.0080.03417.31
5.5.310.0220.02517.12
5.5.300.0010.02616.06
5.5.290.0100.03616.04
5.5.280.0100.04017.54
5.5.270.0080.04117.51
5.5.260.0110.03417.53
5.5.250.0100.04317.39
5.5.240.0180.03817.32
5.5.230.0070.00714.04
5.5.220.0110.00414.26
5.5.210.0120.00614.00
5.5.200.0090.00914.09
5.5.190.0080.00814.29
5.5.180.0030.01314.02
5.5.170.0070.01314.04
5.5.160.0140.00714.30
5.5.150.0100.01014.26
5.5.140.0110.01114.04
5.5.130.0060.01214.43
5.5.120.0060.01214.50
5.5.110.0060.01314.33
5.5.100.0000.01614.37
5.5.90.0080.00814.38
5.5.80.0090.00914.24
5.5.70.0080.00614.42
5.5.60.0120.00314.11
5.5.50.0070.00714.00
5.5.40.0060.00914.29
5.5.30.0040.01114.23
5.5.20.0060.01214.17
5.5.10.0060.00614.04
5.5.00.0130.00014.10

preferences:
62.06 ms | 401 KiB | 5 Q