3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [1,2]; foreach($array as &$a) { if ($a == 1) { $array[] = 3; } echo $a . "\n"; } reset($array); echo "----------\n"; foreach($array as $a) { echo $a . "\n"; }

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)
8.3.60.0120.00618.30
8.3.50.0100.01018.28
8.3.40.0040.01118.76
8.3.30.0120.00318.68
8.3.20.0000.00820.13
8.3.10.0080.00020.72
8.3.00.0040.00419.19
8.2.180.0140.00316.38
8.2.170.0210.00022.96
8.2.160.0080.00520.34
8.2.150.0000.00824.18
8.2.140.0000.00724.66
8.2.130.0080.00019.95
8.2.120.0040.00426.35
8.2.110.0030.00722.25
8.2.100.0000.01117.84
8.2.90.0030.00519.21
8.2.80.0040.00418.05
8.2.70.0060.00317.63
8.2.60.0090.00017.93
8.2.50.0000.00818.10
8.2.40.0000.00722.15
8.2.30.0000.00719.37
8.2.20.0040.00418.00
8.2.10.0040.00418.12
8.2.00.0050.00218.10
8.1.280.0140.00725.92
8.1.270.0050.00322.14
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0030.00622.71
8.1.230.0110.00018.98
8.1.220.0000.00817.78
8.1.210.0030.00618.77
8.1.200.0090.00017.38
8.1.190.0000.00817.36
8.1.180.0040.00418.10
8.1.170.0060.00318.49
8.1.160.0040.00418.93
8.1.150.0030.00518.82
8.1.140.0000.00719.58
8.1.130.0070.00018.89
8.1.120.0000.00717.45
8.1.110.0040.00417.35
8.1.100.0000.00817.49
8.1.90.0000.00717.49
8.1.80.0000.00817.50
8.1.70.0030.00317.50
8.1.60.0060.00317.57
8.1.50.0030.00517.41
8.1.40.0050.00317.50
8.1.30.0000.00817.64
8.1.20.0030.00517.64
8.1.10.0080.00017.55
8.1.00.0000.00917.44
8.0.300.0070.00018.77
8.0.290.0040.00416.63
8.0.280.0040.00418.48
8.0.270.0070.00017.21
8.0.260.0050.00218.88
8.0.250.0030.00316.93
8.0.240.0030.00316.95
8.0.230.0030.00516.95
8.0.220.0050.00316.83
8.0.210.0030.00316.89
8.0.200.0030.00516.84
8.0.190.0050.00317.01
8.0.180.0050.00216.92
8.0.170.0070.00016.98
8.0.160.0000.00716.86
8.0.150.0030.00316.85
8.0.140.0070.00016.75
8.0.130.0030.00313.39
8.0.120.0030.00316.88
8.0.110.0040.00417.00
8.0.100.0050.00316.95
8.0.90.0060.00316.88
8.0.80.0100.01016.93
8.0.70.0000.00816.95
8.0.60.0050.00216.69
8.0.50.0040.00416.94
8.0.30.0090.00917.27
8.0.20.0100.01017.40
8.0.10.0040.00416.84
8.0.00.0140.00316.82
7.4.330.0000.00515.55
7.4.320.0000.00616.47
7.4.300.0030.00316.59
7.4.290.0030.00316.51
7.4.280.0040.00416.62
7.4.270.0030.00316.50
7.4.260.0030.00616.38
7.4.250.0070.00016.54
7.4.240.0070.00016.41
7.4.230.0080.00016.63
7.4.220.0110.00716.70
7.4.210.0070.01016.43
7.4.200.0000.00816.62
7.4.160.0080.01016.40
7.4.150.0070.01117.40
7.4.140.0090.00817.86
7.4.130.0110.00716.56
7.4.120.0100.00816.52
7.4.110.0120.00616.55
7.4.100.0130.00716.50
7.4.90.0110.00716.37
7.4.80.0090.00919.39
7.4.70.0100.01016.45
7.4.60.0120.00816.46
7.4.50.0030.01316.60
7.4.40.0100.00616.47
7.4.30.0060.01616.60
7.4.10.0040.01514.95
7.4.00.0040.01114.96
7.3.330.0000.00513.11
7.3.320.0020.00213.17
7.3.310.0000.00716.22
7.3.300.0070.00016.25
7.3.290.0030.00316.29
7.3.280.0090.00816.27
7.3.270.0100.00717.40
7.3.260.0130.00816.46
7.3.250.0120.00516.39
7.3.240.0060.01116.36
7.3.230.0180.00016.71
7.3.210.0060.01216.28
7.3.200.0170.00016.54
7.3.190.0080.00816.30
7.3.180.0060.01116.66
7.3.170.0130.00316.27
7.3.160.0080.00816.52
7.3.130.0060.00614.81
7.3.120.0060.01314.75
7.3.110.0090.00914.99
7.3.100.0080.00814.91
7.3.90.0030.01315.01
7.3.80.0060.00914.61
7.3.70.0040.00914.58
7.3.60.0080.00914.74
7.3.50.0080.00514.62
7.3.40.0040.01314.62
7.3.30.0080.00614.83
7.3.20.0070.00716.40
7.3.10.0050.01016.57
7.3.00.0050.00916.73
7.2.330.0070.01116.61
7.2.320.0110.01216.38
7.2.310.0000.01816.46
7.2.300.0110.00916.48
7.2.290.0090.00816.80
7.2.260.0070.01114.84
7.2.250.0080.01115.16
7.2.240.0050.01015.08
7.2.230.0090.00814.69
7.2.220.0020.01315.04
7.2.210.0040.01114.97
7.2.200.0050.01214.99
7.2.190.0080.00914.89
7.2.180.0060.00615.04
7.2.170.0050.01114.97
7.2.160.0030.00714.98
7.2.150.0000.01516.90
7.2.140.0090.00916.98
7.2.130.0050.00816.99
7.2.120.0030.01116.79
7.2.110.0110.00516.76
7.2.100.0030.00916.76
7.2.90.0070.00516.88
7.2.80.0080.00716.64
7.2.70.0050.00816.64
7.2.60.0050.00516.93
7.2.50.0080.00816.90
7.2.40.0080.00816.83
7.2.30.0090.00716.96
7.2.20.0090.00516.94
7.2.10.0030.01216.69
7.2.00.0070.00816.79
7.1.330.0040.01115.86
7.1.320.0040.00915.56
7.1.310.0050.00915.76
7.1.300.0070.00815.73
7.1.290.0080.00515.71
7.1.280.0080.00815.59
7.1.270.0080.00715.75
7.1.260.0020.01215.76
7.1.250.0050.00815.69
7.1.240.0040.01215.55
7.1.230.0070.00715.61
7.1.220.0080.00615.56
7.1.210.0080.00515.54
7.1.200.0090.00315.54
7.1.190.0020.00915.70
7.1.180.0010.01115.76
7.1.170.0020.01215.81
7.1.160.0040.01115.66
7.1.150.0070.00515.74
7.1.140.0120.00415.71
7.1.130.0050.00815.70
7.1.120.0060.00715.57
7.1.110.0070.00715.52
7.1.100.0080.00515.81
7.1.90.0090.00415.74
7.1.80.0030.01115.67
7.1.70.0290.00615.62
7.1.60.0400.00821.61
7.1.50.0550.01121.57
7.1.40.0350.00821.20
7.1.30.0350.01021.27
7.1.20.0370.00821.37
7.1.10.0500.01115.20
7.1.00.0520.00815.52
7.0.330.0020.01115.43
7.0.320.0060.00815.33
7.0.310.0080.00415.27
7.0.300.0000.01115.41
7.0.290.0050.00915.30
7.0.280.0000.01215.25
7.0.270.0050.00915.33
7.0.260.0050.00715.35
7.0.250.0070.00615.49
7.0.240.0050.00815.51
7.0.230.0090.00415.32
7.0.220.0060.00815.35
7.0.210.0090.00215.34
7.0.200.0430.00715.21
7.0.190.0430.00715.16
7.0.180.0380.01115.18
7.0.170.0370.00615.08
7.0.160.0320.00815.04
7.0.150.0260.01115.09
7.0.140.0340.00915.16
7.0.130.0060.00715.13
7.0.120.0470.00715.22
7.0.110.0620.00715.08
7.0.100.0040.01015.09
7.0.90.0030.01415.10
7.0.80.0460.00615.10
7.0.70.0070.01015.12
7.0.60.0490.00615.02
7.0.50.0700.00915.12
7.0.40.0530.00813.78
7.0.30.0870.00513.76
7.0.20.0410.01113.73
7.0.10.0500.00913.79
7.0.00.0450.00913.73
5.6.400.0070.01014.04
5.6.390.0070.01014.63
5.6.380.0100.00214.36
5.6.370.0070.00714.29
5.6.360.0060.00914.73
5.6.350.0030.00914.58
5.6.340.0030.01014.28
5.6.330.0030.00714.68
5.6.320.0040.01214.68
5.6.310.0070.00714.17
5.6.300.0070.00713.92
5.6.290.0000.01514.40
5.6.280.0060.00614.57
5.6.270.0060.00614.55
5.6.260.0060.00614.31
5.6.250.0040.00414.22
5.6.240.0000.01514.29
5.6.230.0040.01114.18
5.6.220.0060.00614.13
5.6.210.0100.01014.28
5.6.200.0070.01314.44
5.6.190.0040.00814.45
5.6.180.0070.00714.50
5.6.170.0100.00014.18
5.6.160.0040.01114.50
5.6.150.0110.00714.63
5.6.140.0060.00914.44
5.6.130.0030.01114.34
5.6.120.0070.01014.36
5.6.110.0030.00914.14
5.6.100.0070.00714.33
5.6.90.0070.01014.17
5.6.80.0060.00914.21
5.6.70.0000.01314.40
5.6.60.0060.00914.50
5.6.50.0030.01014.07
5.6.40.0060.01214.51
5.6.30.0060.01014.05
5.6.20.0030.00614.37
5.6.10.0040.00714.11
5.6.00.0040.00714.33

preferences:
49.25 ms | 400 KiB | 5 Q