3v4l.org

run code in 300+ PHP versions simultaneously
<?php $items=array("a", "b", "c", "d"); for ($i=0;$i<4;$i++) { $item=&$items[$i]; //if (!isset($item)) $item=$j."_".$i; $item=$item.$item; } print_r($items); foreach ($items as $item) echo $item."\n"; print_r($items);

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)
8.3.60.0040.01118.43
8.3.50.0110.00517.39
8.3.40.0170.00318.89
8.3.30.0180.00318.89
8.3.20.0000.00818.72
8.3.10.0050.00318.91
8.3.00.0040.00419.25
8.2.180.0060.00916.38
8.2.170.0100.01022.96
8.2.160.0120.00318.98
8.2.150.0050.00324.18
8.2.140.0160.00024.66
8.2.130.0040.00426.16
8.2.120.0080.00020.77
8.2.110.0070.00421.00
8.2.100.0070.00417.97
8.2.90.0000.00819.21
8.2.80.0070.00019.25
8.2.70.0040.00417.75
8.2.60.0030.00618.04
8.2.50.0000.00817.93
8.2.40.0040.00419.60
8.2.30.0090.00017.86
8.2.20.0000.00917.60
8.2.10.0000.00717.72
8.2.00.0030.00717.74
8.1.280.0150.00025.92
8.1.270.0040.00423.99
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00620.96
8.1.230.0070.00317.89
8.1.220.0060.00317.74
8.1.210.0050.00318.77
8.1.200.0030.00617.35
8.1.190.0080.00017.23
8.1.180.0040.00418.10
8.1.170.0050.00317.62
8.1.160.0070.00019.01
8.1.150.0050.00218.68
8.1.140.0000.00717.43
8.1.130.0050.00219.14
8.1.120.0040.00417.43
8.1.110.0040.00417.42
8.1.100.0000.00717.28
8.1.90.0000.00817.45
8.1.80.0050.00317.50
8.1.70.0070.00017.43
8.1.60.0080.00017.59
8.1.50.0000.00817.54
8.1.40.0050.00217.52
8.1.30.0050.00217.66
8.1.20.0060.00317.60
8.1.10.0040.00417.44
8.1.00.0050.00317.49
8.0.300.0050.00318.77
8.0.290.0080.00016.75
8.0.280.0000.00718.55
8.0.270.0030.00317.29
8.0.260.0030.00318.45
8.0.250.0000.00716.97
8.0.240.0040.00416.99
8.0.230.0040.00416.99
8.0.220.0000.00716.80
8.0.210.0030.00316.87
8.0.200.0050.00316.84
8.0.190.0040.00416.85
8.0.180.0000.00716.82
8.0.170.0000.00816.79
8.0.160.0000.00816.91
8.0.150.0030.00616.89
8.0.140.0060.00516.83
8.0.130.0030.00313.27
8.0.120.0050.00316.85
8.0.110.0040.00416.75
8.0.100.0000.00816.93
8.0.90.0040.00416.68
8.0.80.0180.00016.89
8.0.70.0000.00716.69
8.0.60.0000.00816.73
8.0.50.0040.00416.78
8.0.30.0160.00317.04
8.0.20.0110.00817.07
8.0.10.0000.00817.07
8.0.00.0100.01116.86
7.4.330.0050.00013.05
7.4.320.0030.00316.57
7.4.300.0030.00316.48
7.4.290.0030.00616.50
7.4.280.0000.01016.62
7.4.270.0030.00616.45
7.4.260.0080.00013.38
7.4.250.0060.00316.63
7.4.240.0030.00516.41
7.4.230.0000.00716.39
7.4.220.0090.00916.56
7.4.210.0160.00316.53
7.4.200.0000.00716.71
7.4.190.0070.00016.73
7.4.160.0060.00916.34
7.4.150.0090.00916.57
7.4.140.0070.01417.86
7.4.130.0170.01016.39
7.4.120.0160.00616.43
7.4.110.0140.01116.64
7.4.100.0100.00716.59
7.4.90.0100.00716.45
7.4.80.0030.01319.39
7.4.70.0070.01016.57
7.4.60.0090.00616.62
7.4.50.0000.00516.41
7.4.40.0030.00716.50
7.4.30.0080.00816.41
7.4.00.0090.00814.92
7.3.330.0000.00513.24
7.3.320.0030.00313.08
7.3.310.0000.00716.24
7.3.300.0000.00716.20
7.3.290.0080.01116.36
7.3.280.0160.00716.32
7.3.270.0140.00316.69
7.3.260.0080.00816.31
7.3.240.0140.00316.41
7.3.230.0110.00716.51
7.3.210.0060.01116.50
7.3.200.0160.00316.59
7.3.190.0100.00716.30
7.3.180.0060.01316.64
7.3.170.0120.00416.64
7.3.160.0120.00816.48
7.3.120.0120.00514.72
7.3.110.0070.01114.77
7.3.100.0090.00914.79
7.3.90.0090.00915.09
7.3.80.0040.00814.93
7.3.70.0070.01014.69
7.3.60.0030.00614.75
7.3.50.0080.00414.80
7.3.40.0000.01314.67
7.3.30.0070.00714.54
7.3.20.0070.00716.80
7.3.10.0050.00616.80
7.3.00.0030.00916.54
7.2.330.0030.01416.50
7.2.320.0030.01316.39
7.2.310.0130.00916.41
7.2.300.0080.00816.30
7.2.290.0120.00916.46
7.2.250.0120.00614.79
7.2.240.0100.01015.20
7.2.230.0060.01015.14
7.2.220.0050.00515.25
7.2.210.0070.01115.12
7.2.200.0030.00915.27
7.2.190.0030.01015.04
7.2.180.0030.01414.82
7.2.170.0030.01315.13
7.2.60.0090.00916.89
7.2.00.0000.01619.43
7.1.330.0000.01515.87
7.1.320.0030.00915.79
7.1.310.0060.00616.05
7.1.300.0030.00715.88
7.1.290.0030.00715.95
7.1.280.0120.00315.74
7.1.270.0090.00015.58
7.1.260.0040.01215.80
7.1.200.0110.00415.84
7.1.100.0100.00318.30
7.1.70.0000.01517.34
7.1.60.0160.00919.25
7.1.50.0090.01516.77
7.1.00.0000.04022.46
7.0.200.0000.01016.84
7.0.140.0100.06722.04
7.0.60.0070.07319.94
7.0.50.0030.04717.92
7.0.40.0070.04019.96
7.0.30.0270.07320.15
7.0.20.0130.08320.33
7.0.10.0170.05720.16
7.0.00.0000.08720.29
5.6.280.0030.07721.10
5.6.210.0030.04020.60
5.6.200.0000.06318.18
5.6.190.0070.08320.49
5.6.180.0200.04020.49
5.6.170.0230.08020.39
5.6.160.0070.08020.47
5.6.150.0100.04718.25
5.6.140.0030.04318.18
5.6.130.0130.06718.18
5.6.120.0030.04321.00
5.6.110.0100.08021.13
5.6.100.0070.08720.98
5.6.90.0170.04720.95
5.6.80.0070.06720.36
5.6.70.4430.03720.38
5.5.350.0170.06320.40
5.5.340.0230.06717.98
5.5.330.0000.09320.56
5.5.320.0470.05720.29
5.5.310.0270.06020.30
5.5.300.0070.08018.07
5.5.290.0070.09018.05
5.5.280.0170.08020.77
5.5.270.0100.09020.75
5.5.260.0070.08320.97
5.5.250.0230.07320.57
5.5.240.0030.07720.36
5.4.450.0130.06319.33
5.4.440.0170.06719.48
5.4.430.0030.04719.52
5.4.420.0030.08019.56
5.4.410.0070.07319.43
5.4.400.0170.05719.15
5.4.390.0100.07319.07
5.4.380.0000.05019.26
5.4.370.0030.06319.00
5.4.360.0070.04319.24
5.4.350.0130.05018.85
5.4.340.0070.07718.87
5.4.320.0030.08019.09
5.4.310.0130.06719.24
5.4.300.0100.08018.87
5.4.290.0100.06719.14
5.4.280.0130.07018.85
5.4.270.0100.06718.97
5.4.260.0030.05319.07
5.4.250.0000.05318.84
5.4.240.0030.08319.20
5.4.230.0100.03319.14
5.4.220.0100.06018.86
5.4.210.0130.07319.15
5.4.200.0000.04319.13
5.4.190.0130.07719.14
5.4.180.0130.07018.99
5.4.170.0100.05718.87
5.4.160.0070.05319.12
5.4.150.0100.07719.02
5.4.140.0130.05316.30
5.4.130.0070.06716.41
5.4.120.0070.05716.41
5.4.110.0130.05716.34
5.4.100.0200.05016.55
5.4.90.0070.07316.39
5.4.80.0070.06316.38
5.4.70.0070.04016.28
5.4.60.0000.06716.35
5.4.50.0100.07016.27
5.4.40.0030.05716.27
5.4.30.0000.04716.27
5.4.20.0100.07016.50
5.4.10.0100.07016.38
5.4.00.0030.04716.01
5.3.290.0100.07014.66
5.3.280.0200.04714.73
5.3.270.0070.06714.62
5.3.260.0070.06714.48
5.3.250.0000.08014.49
5.3.240.0100.07714.59
5.3.230.0130.05014.75
5.3.220.0070.07714.59
5.3.210.0100.05314.55
5.3.200.0200.06314.60
5.3.190.0070.06314.63
5.3.180.0030.06014.70
5.3.170.0100.07714.71
5.3.160.0070.04714.71
5.3.150.0070.07314.55
5.3.140.0130.07014.55
5.3.130.0070.03714.54
5.3.120.0100.06714.46
5.3.110.0170.06714.57
5.3.100.0070.06314.02
5.3.90.0030.08014.01
5.3.80.0130.07014.01
5.3.70.0100.07014.04
5.3.60.0030.08014.00
5.3.50.0070.06714.10
5.3.40.0130.04713.93
5.3.30.0130.06713.97
5.3.20.0030.07313.60
5.3.10.0070.06313.81
5.3.00.0130.06013.79
5.2.170.0030.03711.30
5.2.160.0100.02711.29
5.2.150.0070.06311.11
5.2.140.0070.06011.13
5.2.130.0000.04711.15
5.2.120.0000.06311.07
5.2.110.0070.04011.14
5.2.100.0100.06011.17
5.2.90.0070.05711.25
5.2.80.0070.06311.16
5.2.70.0030.04311.14
5.2.60.0000.05011.04
5.2.50.0100.05311.06
5.2.40.0130.05311.04
5.2.30.0030.06311.02
5.2.20.0070.06010.91
5.2.10.0170.04310.86
5.2.00.0070.04710.85
5.1.60.0070.0379.89
5.1.50.0000.04310.04
5.1.40.0030.0479.97
5.1.30.0030.05710.34
5.1.20.0070.03310.40
5.1.10.0100.04010.12
5.1.00.0030.05710.04
5.0.50.0100.0408.58
5.0.40.0030.0208.38
5.0.30.0100.0608.37
5.0.20.0070.0178.21
5.0.10.0000.0438.07
5.0.00.0030.0678.19
4.4.90.0030.0337.90
4.4.80.0030.0137.90
4.4.70.0030.0377.90
4.4.60.0000.0407.90
4.4.50.0000.0377.90
4.4.40.0000.0277.90
4.4.30.0000.0377.90
4.4.20.0030.0137.90
4.4.10.0070.0237.90
4.4.00.0030.0237.90
4.3.110.0030.0377.90
4.3.100.0000.0277.90
4.3.90.0130.0237.90
4.3.80.0030.0437.90
4.3.70.0000.0207.90
4.3.60.0070.0177.90
4.3.50.0000.0377.90
4.3.40.0030.0507.90
4.3.30.0000.0177.90
4.3.20.0000.0177.90
4.3.10.0000.0277.90
4.3.00.0030.0337.90

preferences:
45.65 ms | 401 KiB | 5 Q