3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('ça', 'ne', 'marche', 'pas'); foreach($array as $key => $value) { unset($array[1]); unset($array[3]); echo $value." "; } echo "\n"; $array = array('ça', 'ne', 'marche', 'pas'); foreach($array as $key => &$value) { unset($array[1]); unset($array[3]); echo $value." "; }

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)
8.3.60.0130.00618.43
8.3.50.0120.00822.17
8.3.40.0070.01318.84
8.3.30.0090.00619.09
8.3.20.0040.00420.18
8.3.10.0000.00822.01
8.3.00.0050.00322.54
8.2.180.0140.00716.75
8.2.170.0100.00722.96
8.2.160.0040.01118.84
8.2.150.0050.00224.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0030.00517.63
8.2.110.0070.00320.32
8.2.100.0080.00417.84
8.2.90.0020.00519.30
8.2.80.0050.00218.16
8.2.70.0080.00017.50
8.2.60.0060.00318.05
8.2.50.0080.00018.07
8.2.40.0050.00317.91
8.2.30.0040.00418.13
8.2.20.0000.00817.77
8.2.10.0040.00417.87
8.2.00.0030.00617.75
8.1.280.0110.00725.92
8.1.270.0050.00322.14
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0070.00323.91
8.1.230.0110.00419.16
8.1.220.0050.00217.74
8.1.210.0050.00318.77
8.1.200.0050.00517.48
8.1.190.0070.00017.41
8.1.180.0040.00418.10
8.1.170.0000.00818.40
8.1.160.0040.00421.93
8.1.150.0050.00218.70
8.1.140.0000.00717.46
8.1.130.0000.00817.88
8.1.120.0040.00417.43
8.1.110.0040.00417.37
8.1.100.0070.00017.35
8.1.90.0000.00717.42
8.1.80.0040.00417.52
8.1.70.0000.00817.40
8.1.60.0030.00617.52
8.1.50.0000.00817.57
8.1.40.0030.00617.43
8.1.30.0080.00017.67
8.1.20.0040.00417.51
8.1.10.0050.00317.47
8.1.00.0040.00417.53
8.0.300.0070.00018.77
8.0.290.0000.00717.16
8.0.280.0070.00018.48
8.0.270.0000.00717.22
8.0.260.0040.00416.89
8.0.250.0030.00316.86
8.0.240.0070.00016.88
8.0.230.0000.00716.90
8.0.220.0030.00316.82
8.0.210.0040.00316.92
8.0.200.0000.00716.82
8.0.190.0080.00016.84
8.0.180.0050.00217.00
8.0.170.0030.00316.92
8.0.160.0070.00016.92
8.0.150.0040.00416.88
8.0.140.0030.00316.73
8.0.130.0030.00313.34
8.0.120.0000.00816.92
8.0.110.0040.00416.80
8.0.100.0050.00216.84
8.0.90.0070.00016.79
8.0.80.0090.00816.91
8.0.70.0030.00316.95
8.0.60.0050.00316.95
8.0.50.0050.00316.84
8.0.30.0180.00217.16
8.0.20.0080.01017.40
8.0.10.0030.00316.91
8.0.00.0090.01116.75
7.4.330.0000.00515.09
7.4.320.0060.00016.64
7.4.300.0000.00616.37
7.4.290.0000.00816.52
7.4.280.0000.00916.52
7.4.270.0000.00716.38
7.4.260.0040.00416.61
7.4.250.0070.00016.48
7.4.240.0020.00616.56
7.4.230.0070.00016.42
7.4.220.0030.01416.68
7.4.210.0050.01316.55
7.4.200.0000.00716.63
7.4.190.0000.00716.65
7.4.160.0090.00916.41
7.4.150.0140.00417.40
7.4.140.0110.00917.86
7.4.130.0080.01416.56
7.4.120.0100.00716.58
7.4.110.0130.00616.47
7.4.100.0160.00616.64
7.4.90.0090.01516.58
7.4.80.0110.00419.39
7.4.70.0100.00716.61
7.4.60.0040.01216.64
7.4.50.0000.00816.43
7.4.40.0110.00422.77
7.4.30.0060.00916.57
7.4.00.0070.00815.00
7.3.330.0020.00213.17
7.3.320.0030.00313.11
7.3.310.0040.00416.36
7.3.300.0040.00416.17
7.3.290.0030.01016.22
7.3.280.0070.01016.31
7.3.270.0090.00917.40
7.3.260.0060.01216.37
7.3.250.0150.00516.46
7.3.240.0140.00316.30
7.3.230.0100.00716.39
7.3.210.0280.01716.67
7.3.200.0120.00619.39
7.3.190.0100.00716.64
7.3.180.0090.00616.23
7.3.170.0170.00316.56
7.3.160.0040.01116.64
7.3.120.0060.00914.95
7.3.110.0130.00314.89
7.3.100.0000.01414.60
7.3.90.0030.01015.02
7.3.80.0070.00714.57
7.3.70.0070.00314.61
7.3.60.0000.01414.55
7.3.50.0030.00714.67
7.3.40.0030.01014.97
7.3.30.0130.00314.88
7.3.20.0030.00716.43
7.3.10.0040.01116.43
7.3.00.0100.00716.72
7.2.330.0100.00616.46
7.2.320.0150.00616.77
7.2.310.0030.01416.72
7.2.300.0100.01416.69
7.2.290.0120.00916.73
7.2.250.0120.00314.90
7.2.240.0030.01614.67
7.2.230.0070.01115.15
7.2.220.0030.01314.61
7.2.210.0130.00014.78
7.2.200.0030.01115.23
7.2.190.0040.01114.93
7.2.180.0020.01515.18
7.2.170.0000.01615.07
7.1.330.0060.01015.47
7.1.320.0060.00915.55
7.1.310.0060.00315.73
7.1.300.0060.00315.57
7.1.290.0070.01015.70
7.1.280.0060.00615.55
7.1.270.0090.00315.54
7.1.260.0060.00615.41
7.1.70.0040.00417.05
7.1.60.0070.01719.82
7.1.50.0070.01416.90
7.1.00.0000.08022.31
7.0.200.0060.00616.46
7.0.140.0000.07322.19
7.0.60.0030.08320.07
7.0.50.0030.08317.90
7.0.40.0100.08020.03
7.0.30.0300.04720.30
7.0.20.0230.08720.21
7.0.10.0030.04320.18
7.0.00.0100.08720.17
5.6.280.0100.06720.77
5.6.210.0070.04320.46
5.6.200.0070.06018.15
5.6.190.0070.04720.42
5.6.180.0330.07320.60
5.6.170.0300.06320.49
5.6.160.0100.04720.51
5.6.150.0030.05718.09
5.6.140.0100.07718.18
5.6.130.0000.04718.11
5.6.120.0070.05020.90
5.6.110.0030.04720.89
5.6.100.0100.05321.13
5.6.90.0030.04320.94
5.6.80.0030.05320.35
5.6.70.4570.04020.37
5.5.350.0000.09020.34
5.5.340.0100.03717.96
5.5.330.0130.06720.07
5.5.320.0200.03720.20
5.5.310.0230.04320.33
5.5.300.0030.07717.91
5.5.290.0070.08018.00
5.5.280.0100.08320.76
5.5.270.0130.05720.83
5.5.260.0030.07720.94
5.5.250.0100.05720.79
5.5.240.0030.03020.12
5.4.450.0570.06319.63
5.4.440.0470.05719.55
5.4.430.0070.06019.32
5.4.420.0130.07019.51
5.4.410.0070.05319.19
5.4.400.1000.00018.80
5.4.390.0770.00018.50
5.4.380.0270.05018.59
5.4.370.0200.05318.67
5.4.360.0230.05318.71
5.4.350.0130.06318.66
5.4.340.0370.04718.70
5.4.320.0070.03712.46
5.4.310.0060.03912.45
5.4.300.0070.03412.45
5.4.290.0060.04012.45
5.4.280.0070.03912.35
5.4.270.0070.05318.83
5.4.260.0170.04718.84
5.4.250.0100.05018.68
5.4.240.0030.06318.89
5.4.230.0070.05018.96
5.4.220.0100.07318.82
5.4.210.0070.07018.75
5.4.200.0070.05318.84
5.4.190.0100.05018.61
5.4.180.0070.05318.73
5.4.170.0200.05718.98
5.4.160.0100.05018.94
5.4.150.0100.07318.97
5.4.140.0170.04716.46
5.4.130.0030.05316.26
5.4.120.0070.05016.25
5.4.110.0070.05316.30
5.4.100.0100.06316.34
5.4.90.0030.05316.21
5.4.80.0100.04716.14
5.4.70.0030.06016.39
5.4.60.0170.06316.43
5.4.50.0130.05716.43
5.4.40.0030.07016.28
5.4.30.0030.06716.16
5.4.20.0100.04716.18
5.4.10.0130.05316.28
5.4.00.0070.05015.69
5.3.290.0080.04512.80
5.3.280.0100.05014.68
5.3.270.0130.04714.62
5.3.260.0130.04714.65
5.3.250.0030.07314.65
5.3.240.0100.05014.44
5.3.230.0070.06014.46
5.3.220.0030.05314.43
5.3.210.0030.05714.57
5.3.200.0030.06714.66
5.3.190.0070.05014.48
5.3.180.0130.04714.58
5.3.170.0200.03714.58
5.3.160.0070.06314.58
5.3.150.0000.05714.57
5.3.140.0130.05314.55
5.3.130.0030.06314.64
5.3.120.0030.05714.54
5.3.110.0070.05314.55
5.3.100.0070.05014.04
5.3.90.0070.05014.03
5.3.80.0100.05014.04
5.3.70.0070.05314.06
5.3.60.0130.05013.85
5.3.50.0030.07313.88
5.3.40.0170.05313.95
5.3.30.0070.04713.68
5.3.20.0030.05013.54
5.3.10.0030.05313.66
5.3.00.0070.05313.79
5.2.170.0030.04311.15
5.2.160.0130.04011.14
5.2.150.0070.03711.16
5.2.140.0070.04011.13
5.2.130.0030.04011.12
5.2.120.0100.03311.12
5.2.110.0070.05010.86
5.2.100.0030.04011.02
5.2.90.0100.03311.20
5.2.80.0070.05311.10
5.2.70.0130.03311.01
5.2.60.0030.04011.07
5.2.50.0070.03711.02
5.2.40.0100.03710.89
5.2.30.0200.02711.07
5.2.20.0030.04010.91
5.2.10.0130.03010.94
5.2.00.0000.04310.62
5.1.60.0100.0409.93
5.1.50.0030.03710.14
5.1.40.0000.04710.02
5.1.30.0230.02710.17
5.1.20.0070.03710.11
5.1.10.0030.0509.91
5.1.00.0030.04010.12
5.0.50.0030.0278.63
5.0.40.0130.0278.27
5.0.30.0070.0538.07
5.0.20.0070.0338.34
5.0.10.0030.0278.18
5.0.00.0070.0438.30
4.4.90.0000.0336.85
4.4.80.0000.0336.85
4.4.70.0030.0206.85
4.4.60.0070.0206.85
4.4.50.0000.0306.85
4.4.40.0070.0336.85
4.4.30.0030.0206.85
4.4.20.0000.0336.85
4.4.10.0000.0276.85
4.4.00.0070.0406.85
4.3.110.0000.0236.85
4.3.100.0030.0206.85
4.3.90.0000.0306.85
4.3.80.0030.0376.85
4.3.70.0070.0176.85
4.3.60.0000.0236.85
4.3.50.0030.0236.85
4.3.40.0030.0306.85
4.3.30.0000.0276.85
4.3.20.0000.0236.85
4.3.10.0030.0206.85
4.3.00.0100.0207.39

preferences:
46.66 ms | 401 KiB | 5 Q