3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr1 = array(1, 2, 3, 4, 5); $arr2 = array('a', 'b', 'c', 'd'); $ref = &$arr1; foreach($arr1 AS $key=>$val) { echo "$key => $val \r\n"; if( $val === 5) { $ref = $arr2; } }

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)
8.3.40.0070.01418.58
8.3.30.0160.00618.84
8.3.20.0040.00420.21
8.3.10.0000.00820.36
8.3.00.0050.00319.38
8.2.170.0060.00822.96
8.2.160.0090.01220.26
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0030.00526.16
8.2.120.0000.00721.07
8.2.110.0050.00520.46
8.2.100.0040.00718.09
8.2.90.0000.00819.17
8.2.80.0040.00417.97
8.2.70.0000.00817.50
8.2.60.0000.00817.93
8.2.50.0000.00818.07
8.2.40.0040.00718.02
8.2.30.0000.00719.42
8.2.20.0000.00817.78
8.2.10.0060.00318.12
8.2.00.0040.00417.72
8.1.270.0040.00424.01
8.1.260.0020.00526.35
8.1.250.0030.00528.09
8.1.240.0090.00023.72
8.1.230.0080.00319.00
8.1.220.0030.00517.78
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0030.00617.22
8.1.180.0000.00818.10
8.1.170.0000.00918.50
8.1.160.0000.00722.06
8.1.150.0050.00218.89
8.1.140.0000.00717.43
8.1.130.0070.00017.73
8.1.120.0000.00717.50
8.1.110.0000.00717.41
8.1.100.0000.00717.41
8.1.90.0000.00717.48
8.1.80.0000.00717.33
8.1.70.0040.00417.42
8.1.60.0060.00317.59
8.1.50.0080.00017.43
8.1.40.0040.00417.45
8.1.30.0000.00817.65
8.1.20.0000.00717.59
8.1.10.0040.00417.45
8.1.00.0000.00717.46
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0070.00018.43
8.0.270.0000.00817.30
8.0.260.0040.00417.24
8.0.250.0000.00716.99
8.0.240.0000.00716.93
8.0.230.0070.00016.90
8.0.220.0020.00516.85
8.0.210.0000.00616.86
8.0.200.0000.00616.85
8.0.190.0050.00216.95
8.0.180.0040.00416.97
8.0.170.0050.00316.91
8.0.160.0090.00016.82
8.0.150.0000.00716.74
8.0.140.0000.00816.80
8.0.130.0030.00313.23
8.0.120.0040.00416.81
8.0.110.0040.00416.77
8.0.100.0070.00016.95
8.0.90.0030.00316.74
8.0.80.0060.00916.85
8.0.70.0040.00416.76
8.0.60.0040.00416.87
8.0.50.0030.00516.81
8.0.30.0080.01117.15
8.0.20.0080.01217.40
8.0.10.0080.00017.05
8.0.00.0100.00916.72
7.4.330.0030.00315.07
7.4.320.0030.00316.57
7.4.300.0060.00016.54
7.4.290.0000.00716.62
7.4.280.0000.00716.44
7.4.270.0050.00216.59
7.4.260.0070.00016.57
7.4.250.0000.00816.34
7.4.240.0040.00416.56
7.4.230.0000.00716.61
7.4.220.0150.00416.61
7.4.210.0080.00516.64
7.4.200.0000.00716.48
7.4.160.0000.01416.59
7.4.150.0080.01517.40
7.4.140.0080.00817.86
7.4.130.0090.00716.42
7.4.120.0120.00516.50
7.4.110.0030.01316.67
7.4.100.0080.00816.48
7.4.90.0030.01616.59
7.4.80.0030.01719.39
7.4.70.0040.01216.47
7.4.60.0130.00316.41
7.4.50.0080.00016.45
7.4.40.0130.00316.38
7.4.30.0130.00316.58
7.4.00.0040.01114.92
7.3.330.0030.00313.06
7.3.320.0000.00613.05
7.3.310.0000.00716.38
7.3.300.0040.00416.23
7.3.290.0100.00716.27
7.3.280.0100.00816.29
7.3.270.0040.01617.40
7.3.260.0060.01016.45
7.3.250.0130.00316.44
7.3.240.0060.01216.46
7.3.230.0200.01616.39
7.3.210.0070.01516.41
7.3.200.0120.00919.39
7.3.190.0080.00816.48
7.3.180.0110.00416.46
7.3.170.0030.01316.43
7.3.160.0030.01316.39
7.2.330.0070.01016.53
7.2.320.0110.01116.49
7.2.310.0060.01316.57
7.2.300.0100.00716.49
7.2.290.0100.00616.36
7.2.00.0040.00818.96
7.1.100.0000.01318.29
7.1.70.0080.00416.98
7.1.60.0040.01819.61
7.1.50.0230.01634.92
7.1.00.0030.07722.48
7.0.200.0120.00616.59
7.0.140.0000.07721.97
7.0.60.0030.05720.01
7.0.50.0100.04717.83
7.0.40.0070.05720.04
7.0.30.0530.07320.00
7.0.20.0270.05320.13
7.0.10.0300.07720.13
7.0.00.0130.08020.20
5.6.280.0070.07020.91
5.6.210.0130.06320.64
5.6.200.0100.07718.09
5.6.190.0070.06320.35
5.6.180.0300.07320.60
5.6.170.0230.07720.46
5.6.160.0130.04320.51
5.6.150.0070.06018.13
5.6.140.0130.06318.12
5.6.130.0030.07718.20
5.6.120.0100.07721.15
5.6.110.0070.08321.00
5.6.100.0070.08720.98
5.6.90.0100.08320.99
5.6.80.0130.07720.37
5.6.70.0300.06720.35
5.5.350.0000.03320.49
5.5.340.0000.08017.91
5.5.330.0000.05320.21
5.5.320.0270.07720.28
5.5.310.0270.07320.21
5.5.300.0030.04017.91
5.5.290.0070.04018.00
5.5.280.0030.04320.82
5.5.270.0000.09720.77
5.5.260.0130.07720.88
5.5.250.0070.04720.66
5.5.240.0030.07320.07
5.4.450.0130.03719.21
5.4.440.0400.05019.57
5.4.430.0770.06719.55
5.4.420.0200.07319.21
5.4.410.0970.05319.48
5.4.400.0170.05019.21
5.4.390.0600.07319.21
5.4.380.0330.05718.67
5.4.370.0170.06318.56
5.4.360.0470.08018.71
5.4.350.0400.06018.65
5.4.340.0170.07718.67
5.4.320.0040.03812.46
5.4.310.0070.03712.45
5.4.300.0060.04012.46
5.4.290.0080.03812.45
5.4.280.0080.03512.35
5.4.270.0070.03912.35
5.4.260.0090.03512.35
5.4.250.0060.04012.35
5.4.240.0060.03612.35
5.4.230.0070.03612.34
5.4.220.0060.03612.34
5.4.210.0080.03412.34
5.4.200.0060.03812.34
5.4.190.0070.03612.34
5.4.180.0080.03412.34
5.4.170.0080.04312.35
5.4.160.0070.04312.34
5.4.150.0060.03512.34
5.4.140.0070.03612.03
5.4.130.0060.03612.02
5.4.120.0110.04011.97
5.4.110.0060.03611.97
5.4.100.0050.03611.96
5.4.90.0050.03811.96
5.4.80.0070.03911.97
5.4.70.0050.03711.96
5.4.60.0080.03511.96
5.4.50.0050.03711.96
5.4.40.0070.03311.95
5.4.30.0080.03411.95
5.4.20.0060.03811.95
5.4.10.0090.03211.95
5.4.00.0080.03411.44
5.3.290.0100.05512.80
5.3.280.0060.05412.71
5.3.270.0100.06512.73
5.3.260.0110.04712.71
5.3.250.0100.04712.72
5.3.240.0080.05212.72
5.3.230.0080.04812.71
5.3.220.0070.04912.68
5.3.210.0080.06012.68
5.3.200.0080.04112.68
5.3.190.0050.04112.68
5.3.180.0070.04412.67
5.3.170.0080.03612.67
5.3.160.0060.03812.67
5.3.150.0130.04512.67
5.3.140.0070.04112.66
5.3.130.0100.04412.66
5.3.120.0080.04312.66
5.3.110.0100.03812.66
5.3.100.0090.04612.12
5.3.90.0150.05412.09
5.3.80.0090.05312.08
5.3.70.0080.03812.07
5.3.60.0110.03712.06
5.3.50.0060.03812.00
5.3.40.0060.04012.00
5.3.30.0080.03211.95
5.3.20.0060.03411.72
5.3.10.0080.03311.69
5.3.00.0070.03611.68
5.2.170.0060.0309.18
5.2.160.0060.0299.18
5.2.150.0050.0319.18
5.2.140.0040.0319.17
5.2.130.0030.0319.14
5.2.120.0020.0319.13
5.2.110.0050.0299.14
5.2.100.0050.0289.14
5.2.90.0070.0269.14
5.2.80.0070.0279.14
5.2.70.0030.0319.13
5.2.60.0030.0329.09
5.2.50.0040.0319.06
5.2.40.0060.0279.03
5.2.30.0020.0319.01
5.2.20.0040.0289.00
5.2.10.0060.0268.94
5.2.00.0040.0298.79
5.1.60.0030.0248.08
5.1.50.0050.0248.07
5.1.40.0050.0238.06
5.1.30.0030.0268.41
5.1.20.0020.0288.43
5.1.10.0050.0258.15
5.1.00.0040.0258.16
5.0.50.0040.0206.63
5.0.40.0050.0186.49
5.0.30.0020.0326.30
5.0.20.0040.0186.27
5.0.10.0030.0206.25
5.0.00.0010.0326.25
4.4.90.0030.0154.77
4.4.80.0040.0134.75
4.4.70.0050.0124.76
4.4.60.0050.0124.76
4.4.50.0030.0144.77
4.4.40.0040.0234.71
4.4.30.0020.0164.76
4.4.20.0040.0154.85
4.4.10.0040.0144.85
4.4.00.0020.0264.76
4.3.110.0030.0174.67
4.3.100.0050.0174.67
4.3.90.0030.0184.63
4.3.80.0040.0234.59
4.3.70.0020.0174.63
4.3.60.0010.0164.63
4.3.50.0010.0204.63
4.3.40.0020.0254.54
4.3.30.0040.0163.29
4.3.20.0020.0163.27
4.3.10.0030.0153.23
4.3.00.0130.01714.28

preferences:
47.65 ms | 400 KiB | 5 Q