3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr1 = array(1, 2, 3, 4, 5); $arr2 = array('a', 'b', 'c', 'd'); foreach($arr1 AS $key=>$val) { echo "$key => $val \r\n"; if( $val === 5) { $new = &$arr1; $new = $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)
8.3.40.0150.00618.59
8.3.30.0140.00718.84
8.3.20.0040.00420.04
8.3.10.0040.00420.20
8.3.00.0150.00019.22
8.2.170.0160.00622.96
8.2.160.0170.00320.26
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0080.00020.98
8.2.110.0090.00020.53
8.2.100.0110.00018.22
8.2.90.0040.00419.17
8.2.80.0000.00817.97
8.2.70.0030.00517.50
8.2.60.0050.00317.80
8.2.50.0050.00318.07
8.2.40.0060.00318.09
8.2.30.0050.00219.47
8.2.20.0020.00517.67
8.2.10.0070.00018.10
8.2.00.0000.00817.66
8.1.270.0090.00023.88
8.1.260.0080.00326.35
8.1.250.0000.00828.09
8.1.240.0060.00323.83
8.1.230.0040.00719.15
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0070.00317.35
8.1.190.0080.00017.10
8.1.180.0040.00418.10
8.1.170.0080.00018.54
8.1.160.0040.00422.00
8.1.150.0040.00418.79
8.1.140.0000.00717.44
8.1.130.0030.00317.72
8.1.120.0040.00417.39
8.1.110.0000.00717.35
8.1.100.0000.00717.32
8.1.90.0040.00417.41
8.1.80.0040.00417.40
8.1.70.0030.00317.35
8.1.60.0000.00717.56
8.1.50.0060.00317.50
8.1.40.0030.00517.54
8.1.30.0040.00417.59
8.1.20.0050.00317.63
8.1.10.0040.00417.40
8.1.00.0040.00417.40
8.0.300.0050.00218.77
8.0.290.0070.00016.63
8.0.280.0000.00818.34
8.0.270.0000.00717.24
8.0.260.0040.00417.16
8.0.250.0000.00716.96
8.0.240.0030.00316.96
8.0.230.0000.00716.88
8.0.220.0000.00716.81
8.0.210.0030.00316.90
8.0.200.0030.00316.80
8.0.190.0000.00716.93
8.0.180.0030.00316.89
8.0.170.0030.00616.91
8.0.160.0000.00916.76
8.0.150.0000.00716.86
8.0.140.0000.00716.86
8.0.130.0030.00313.39
8.0.120.0040.00416.75
8.0.110.0040.00416.70
8.0.100.0050.00216.90
8.0.90.0000.00716.87
8.0.80.0040.01116.77
8.0.70.0030.00516.66
8.0.60.0000.00716.95
8.0.50.0030.00616.98
8.0.30.0120.00917.26
8.0.20.0050.01317.40
8.0.10.0000.00716.80
8.0.00.0090.00916.53
7.4.330.0030.00315.14
7.4.320.0030.00316.61
7.4.300.0030.00316.48
7.4.290.0030.00316.41
7.4.280.0040.00416.39
7.4.270.0070.00016.63
7.4.260.0000.00716.37
7.4.250.0000.00716.55
7.4.240.0000.00716.49
7.4.230.0000.00716.63
7.4.220.0030.01416.54
7.4.210.0030.01216.55
7.4.200.0000.00716.68
7.4.160.0070.00716.47
7.4.150.0150.00417.40
7.4.140.0100.00717.86
7.4.130.0080.00916.38
7.4.120.0100.00716.55
7.4.110.0100.00716.48
7.4.100.0040.01316.49
7.4.90.0100.00716.40
7.4.80.0090.01119.39
7.4.70.0040.01216.45
7.4.60.0080.00816.54
7.4.50.0030.00616.33
7.4.40.0070.01016.38
7.4.30.0090.00616.55
7.4.00.0060.01014.83
7.3.330.0000.00613.21
7.3.320.0020.00313.15
7.3.310.0030.00316.39
7.3.300.0040.00416.34
7.3.290.0040.01416.29
7.3.280.0110.00616.32
7.3.270.0090.00917.40
7.3.260.0060.01616.34
7.3.250.0110.00516.35
7.3.240.0100.01016.45
7.3.230.0090.01016.49
7.3.210.0070.01116.44
7.3.200.0070.01519.39
7.3.190.0100.00616.50
7.3.180.0090.00616.39
7.3.170.0040.01216.55
7.3.160.0090.00816.31
7.3.120.0070.00814.95
7.3.110.0070.00714.80
7.3.100.0060.01014.87
7.3.90.0070.00514.83
7.3.80.0070.00814.87
7.3.70.0050.00814.66
7.3.60.0050.00814.96
7.3.50.0060.00914.93
7.3.40.0070.00714.48
7.3.30.0050.00814.79
7.3.20.0050.00816.68
7.3.10.0030.01016.50
7.3.00.0060.00916.69
7.2.330.0060.01016.79
7.2.320.0120.00616.67
7.2.310.0100.00716.65
7.2.300.0150.00416.67
7.2.290.0080.00816.79
7.2.250.0070.01015.13
7.2.240.0050.01315.03
7.2.230.0060.00815.03
7.2.220.0020.00815.05
7.2.210.0040.01014.87
7.2.200.0040.01415.03
7.2.190.0020.01115.07
7.2.180.0050.00914.80
7.2.170.0070.00914.89
7.2.00.0040.00819.51
7.1.330.0060.01015.95
7.1.320.0050.00715.93
7.1.310.0070.00715.62
7.1.300.0080.00315.77
7.1.290.0020.01115.65
7.1.280.0100.00415.54
7.1.270.0060.00715.66
7.1.260.0070.00315.82
7.1.100.0210.01418.09
7.1.70.0070.00317.26
7.1.60.0100.01319.61
7.1.50.0220.00634.91
7.1.00.0070.07022.36
7.0.200.0070.00516.72
7.0.140.0070.07022.11
7.0.60.0230.07721.87
7.0.50.0070.08017.84
7.0.40.0100.04320.40
7.0.30.0530.07720.33
7.0.20.0270.08320.17
7.0.10.0030.09020.17
7.0.00.0170.04020.20
5.6.280.0030.07321.04
5.6.210.0070.04020.69
5.6.200.0030.05318.22
5.6.190.0200.06020.41
5.6.180.0530.06720.35
5.6.170.0370.03720.38
5.6.160.0000.04720.49
5.6.150.0030.09318.18
5.6.140.0200.06018.08
5.6.130.0030.04718.10
5.6.120.0030.09320.93
5.6.110.0100.08021.14
5.6.100.0030.04020.98
5.6.90.0030.04020.96
5.6.80.0100.07020.50
5.5.350.0100.06020.40
5.5.340.0030.08717.92
5.5.330.0130.07720.23
5.5.320.0070.08020.29
5.5.310.0300.04020.13
5.5.300.0070.08017.89
5.5.290.0030.06017.99
5.5.280.0070.07320.77
5.5.270.0070.09020.82
5.5.260.0030.06720.83
5.5.250.0130.07720.54
5.5.240.0200.03320.29
5.4.450.0730.05019.24
5.4.440.0530.03019.13
5.4.430.0130.07019.25
5.4.420.0530.05019.25
5.4.410.0530.06019.04
5.4.400.0730.05318.83
5.4.390.0700.06019.21
5.4.380.0330.07718.70
5.4.370.0230.08018.56
5.4.360.0430.03718.60
5.4.350.0230.07018.72
5.4.340.0200.05318.49
5.4.320.0050.04512.46
5.4.310.0100.04512.45
5.4.300.0080.04812.45
5.4.290.0090.05012.45
5.4.280.0070.05012.35
5.4.270.0120.04512.35
5.4.260.0150.04412.35
5.4.250.0100.04512.35
5.4.240.0090.04912.35
5.4.230.0100.04912.34
5.4.220.0070.03512.34
5.4.210.0080.03812.34
5.4.200.0090.03712.34
5.4.190.0060.03912.34
5.4.180.0060.03712.34
5.4.170.0080.03312.35
5.4.160.0090.03312.35
5.4.150.0050.03712.34
5.4.140.0060.03712.02
5.4.130.0110.03512.01
5.4.120.0080.03611.97
5.4.110.0100.03511.97
5.4.100.0090.03111.96
5.4.90.0080.03611.96
5.4.80.0070.03611.96
5.4.70.0080.03511.96
5.4.60.0070.03411.96
5.4.50.0070.04111.96
5.4.40.0070.04011.95
5.4.30.0050.04311.95
5.4.20.0060.03711.95
5.4.10.0070.03411.95
5.4.00.0030.03711.44
5.3.290.0090.04512.80
5.3.280.0080.03712.70
5.3.270.0070.03812.73
5.3.260.0060.03912.72
5.3.250.0040.03912.72
5.3.240.0050.03912.72
5.3.230.0090.03712.71
5.3.220.0050.04012.68
5.3.210.0080.03612.68
5.3.200.0100.04212.68
5.3.190.0050.03912.68
5.3.180.0050.03812.67
5.3.170.0070.04512.67
5.3.160.0090.03512.67
5.3.150.0060.04812.67
5.3.140.0040.03812.66
5.3.130.0080.04212.66
5.3.120.0160.03912.66
5.3.110.0100.04012.66
5.3.100.0080.03712.12
5.3.90.0070.03912.08
5.3.80.0070.04312.07
5.3.70.0080.04112.07
5.3.60.0120.04512.07
5.3.50.0040.04212.00
5.3.40.0080.03912.00
5.3.30.0050.03711.94
5.3.20.0070.03511.72
5.3.10.0080.03611.69
5.3.00.0100.03711.68
5.2.170.0060.0399.18
5.2.160.0070.0379.18
5.2.150.0050.0349.18
5.2.140.0060.0359.17
5.2.130.0080.0339.13
5.2.120.0050.0309.14
5.2.110.0060.0299.14
5.2.100.0030.0309.14
5.2.90.0030.0309.14
5.2.80.0040.0329.13
5.2.70.0050.0339.14
5.2.60.0080.0319.09
5.2.50.0050.0309.06
5.2.40.0080.0339.03
5.2.30.0090.0329.01
5.2.20.0070.0349.00
5.2.10.0060.0308.94
5.2.00.0070.0288.79
5.1.60.0070.0248.08
5.1.50.0040.0328.07
5.1.40.0050.0298.05
5.1.30.0080.0228.41
5.1.20.0050.0288.43
5.1.10.0030.0278.15
5.1.00.0040.0278.16
5.0.50.0030.0226.63
5.0.40.0030.0286.49
5.0.30.0010.0346.30
5.0.20.0060.0256.27
5.0.10.0020.0256.25
5.0.00.0050.0336.24
4.4.90.0050.0194.78
4.4.80.0060.0114.75
4.4.70.0010.0234.75
4.4.60.0040.0224.75
4.4.50.0020.0184.77
4.4.40.0020.0254.70
4.4.30.0030.0154.76
4.4.20.0020.0234.85
4.4.10.0040.0194.85
4.4.00.0030.0264.76
4.3.110.0030.0164.67
4.3.100.0040.0144.66
4.3.90.0040.0124.63
4.3.80.0030.0224.58
4.3.70.0010.0154.63
4.3.60.0020.0144.63
4.3.50.0040.0134.63
4.3.40.0040.0414.54
4.3.30.0020.0163.29
4.3.20.0020.0153.27
4.3.10.0000.0183.23
4.3.00.0070.01314.28

preferences:
43.87 ms | 400 KiB | 5 Q