3v4l.org

run code in 300+ PHP versions simultaneously
<?php function array_map_key(Callable $callback, $array) { $return = array(); foreach ($array as $key => $value) { list($k,$v) = $callback($key, $value); $return[$k] = $v; } return $return; } function my_call_back($key, $value) { return array($value, strlen($value)); } $array = explode(" ", "PHP stands for PHP hypertext preprocessor"); $array = array_map_key('my_call_back', $array); var_dump($array);

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)
8.3.40.0060.01218.75
8.3.30.0090.00620.14
8.3.20.0070.00020.21
8.3.10.0040.00422.13
8.3.00.0050.00222.37
8.2.170.0110.00422.96
8.2.160.0070.00720.56
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0070.00326.16
8.2.120.0040.00419.54
8.2.110.0060.00320.47
8.2.100.0080.00318.03
8.2.90.0030.00519.25
8.2.80.0040.00419.20
8.2.70.0060.00317.63
8.2.60.0060.00318.05
8.2.50.0060.00318.07
8.2.40.0000.00818.16
8.2.30.0040.00418.13
8.2.20.0000.00817.71
8.2.10.0040.00417.81
8.2.00.0080.00017.73
8.1.270.0100.00620.33
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00623.76
8.1.230.0080.00319.05
8.1.220.0090.00017.79
8.1.210.0030.00518.77
8.1.200.0030.00617.13
8.1.190.0040.00417.55
8.1.180.0080.00018.10
8.1.170.0060.00318.49
8.1.160.0030.00322.02
8.1.150.0000.00718.59
8.1.140.0040.00417.37
8.1.130.0070.00017.82
8.1.120.0040.00417.48
8.1.110.0040.00417.42
8.1.100.0040.00417.45
8.1.90.0040.00417.43
8.1.80.0000.00717.45
8.1.70.0030.00317.45
8.1.60.0040.00417.68
8.1.50.0030.00517.43
8.1.40.0100.00017.44
8.1.30.0000.00817.64
8.1.20.0030.00617.74
8.1.10.0040.00417.65
8.1.00.0040.00417.50
8.0.300.0070.00018.77
8.0.290.0000.00717.18
8.0.280.0070.00018.50
8.0.270.0000.00716.92
8.0.260.0030.00316.89
8.0.250.0030.00317.06
8.0.240.0030.00617.08
8.0.230.0030.00317.01
8.0.220.0070.00016.95
8.0.210.0000.00716.96
8.0.200.0030.00316.91
8.0.190.0030.00416.98
8.0.180.0040.00717.07
8.0.170.0000.00717.00
8.0.160.0030.00516.77
8.0.150.0000.00816.80
8.0.140.0040.00416.91
8.0.130.0000.00513.41
8.0.120.0030.00516.89
8.0.110.0080.00016.98
8.0.100.0000.00816.78
8.0.90.0000.00716.74
8.0.80.0120.00616.90
8.0.70.0000.00717.00
8.0.60.0070.00016.86
8.0.50.0050.00216.98
8.0.30.0120.01016.96
8.0.20.0090.00917.40
8.0.10.0080.00016.91
8.0.00.0140.00416.92
7.4.330.0020.00215.00
7.4.320.0000.00616.45
7.4.300.0030.00316.41
7.4.290.0030.00616.61
7.4.280.0070.00016.61
7.4.270.0030.00316.62
7.4.260.0030.00316.61
7.4.250.0040.00416.59
7.4.240.0030.00516.55
7.4.230.0070.00016.59
7.4.220.0090.00916.47
7.4.210.0080.00916.58
7.4.200.0030.00316.54
7.4.190.0040.00416.70
7.4.160.0150.00316.62
7.4.150.0100.00617.40
7.4.140.0120.00617.86
7.4.130.0070.01016.60
7.4.120.0130.00416.50
7.4.110.0170.00016.57
7.4.100.0110.00616.64
7.4.90.0120.01216.50
7.4.80.0070.01019.39
7.4.70.0120.00516.58
7.4.60.0090.00816.71
7.4.50.0040.00016.49
7.4.40.0070.01022.77
7.4.30.0000.01616.52
7.4.00.0000.01115.13
7.3.330.0030.00313.23
7.3.320.0030.00213.24
7.3.310.0050.00216.40
7.3.300.0030.00316.23
7.3.290.0090.01216.38
7.3.280.0100.00516.36
7.3.270.0160.00817.40
7.3.260.0110.01516.81
7.3.250.0120.00516.56
7.3.240.0160.00716.36
7.3.230.0120.00916.56
7.3.210.0070.01016.46
7.3.200.0140.00719.39
7.3.190.0120.00916.39
7.3.180.0180.00616.48
7.3.170.0160.00016.37
7.3.160.0120.00316.38
7.3.120.0100.00314.78
7.3.110.0030.01014.92
7.3.100.0030.01015.02
7.3.90.0000.01614.63
7.3.80.0030.00714.59
7.3.70.0030.01115.00
7.3.60.0000.01315.01
7.3.50.0000.01714.89
7.3.40.0030.00914.80
7.3.30.0090.00614.56
7.3.20.0000.01716.61
7.3.10.0060.00616.78
7.3.00.0030.01016.71
7.2.330.0130.00516.57
7.2.320.0110.00616.86
7.2.310.0090.01316.70
7.2.300.0060.01216.79
7.2.290.0110.00516.61
7.2.240.0060.00615.03
7.2.230.0040.01214.98
7.2.220.0040.00715.25
7.2.210.0040.00715.28
7.2.200.0060.00314.92
7.2.190.0000.00915.06
7.2.180.0030.00615.20
7.2.170.0090.00915.00
7.2.160.0060.00915.05
7.2.150.0130.00316.69
7.2.140.0060.00917.10
7.2.130.0130.00416.76
7.2.120.0030.00916.85
7.2.110.0040.01116.94
7.2.100.0030.00916.90
7.2.90.0090.00516.97
7.2.80.0060.00817.12
7.2.70.0090.00616.82
7.2.60.0070.00716.86
7.2.50.0050.01116.87
7.2.40.0050.01216.99
7.2.30.0070.00416.85
7.2.20.0050.01116.93
7.2.10.0100.00316.97
7.2.00.0050.00917.71
7.1.330.0030.00716.00
7.1.320.0110.00315.98
7.1.310.0030.00916.05
7.1.300.0000.01415.84
7.1.290.0070.00715.64
7.1.280.0000.01415.64
7.1.270.0040.00415.75
7.1.260.0080.00815.88
7.1.250.0060.00715.68
7.1.200.0060.00915.65
7.1.100.0040.01517.84
7.1.70.0000.00817.34
7.1.60.0150.00619.40
7.1.50.0110.00716.44
7.1.00.0030.07022.32
7.0.200.0000.00716.86
7.0.140.0000.07722.09
7.0.70.0030.08721.93
7.0.60.0030.08721.77
7.0.50.0030.06022.09
7.0.40.0070.08320.11
7.0.30.0170.07320.09
7.0.20.0130.08020.04
7.0.10.0070.07720.10
7.0.00.0070.06720.12
5.6.280.0070.07020.90
5.6.220.0070.08020.66
5.6.210.0100.07020.65
5.6.200.0070.08721.11
5.6.190.0070.04321.09
5.6.180.0030.08721.03
5.6.170.0030.08321.08
5.6.160.0070.06021.09
5.6.150.0070.08021.12
5.6.140.0030.06721.01
5.6.130.0130.08021.11
5.6.120.0070.08021.01
5.6.110.0070.07321.13
5.6.100.0030.08321.02
5.6.90.0070.08320.97
5.6.80.0000.08320.50
5.6.70.0000.09020.40
5.6.60.0070.08320.55
5.6.50.0070.07720.41
5.6.40.0000.07020.32
5.6.30.0030.07320.46
5.6.20.0000.08720.31
5.6.10.0100.07320.42
5.6.00.0000.06320.40
5.5.360.0130.05020.36
5.5.350.0070.07320.48
5.5.340.0030.07020.73
5.5.330.0070.07720.79
5.5.320.0100.08020.63
5.5.310.0030.07020.90
5.5.300.0000.09020.86
5.5.290.0070.06320.93
5.5.280.0000.09020.86
5.5.270.0000.09020.83
5.5.260.0030.08720.79
5.5.250.0030.06020.74
5.5.240.0130.06720.15
5.5.230.0000.06720.16
5.5.220.0100.06020.18
5.5.210.0100.04320.27
5.5.200.0030.06320.12
5.5.190.0070.07320.19
5.5.180.0030.05020.21
5.5.160.0030.05020.25
5.5.150.0000.07320.13
5.5.140.0030.08320.14
5.5.130.0070.07320.23
5.5.120.0100.07320.12
5.5.110.0100.08020.15
5.5.100.0100.07720.17
5.5.90.0070.07320.11
5.5.80.0000.08320.10
5.5.70.0000.05020.07
5.5.60.0070.03720.09
5.5.50.0000.04720.12
5.5.40.0000.04320.12
5.5.30.0030.04019.91
5.5.20.0000.05720.09
5.5.10.0130.03020.08
5.5.00.0030.06720.02
5.4.450.0070.07319.38
5.4.440.0070.08019.56
5.4.430.0000.08719.53
5.4.420.0030.07319.22
5.4.410.0030.06319.35
5.4.400.0070.06019.23
5.4.390.0000.08719.06
5.4.380.0000.05318.95
5.4.370.0070.07019.05
5.4.360.0070.07718.91
5.4.350.0070.04319.23
5.4.340.0030.07319.11
5.4.320.0130.07019.04
5.4.310.0070.07018.95
5.4.300.0030.07718.90
5.4.290.0070.06018.85
5.4.280.0000.08319.09
5.4.270.0030.07319.23
5.4.260.0070.04719.06
5.4.250.0100.07018.94
5.4.240.0030.08019.18
5.4.230.0000.04019.03
5.4.220.0070.07319.20
5.4.210.0000.03719.13
5.4.200.0000.04019.02
5.4.190.0030.03318.89
5.4.180.0000.04018.92
5.4.170.0070.03319.22
5.4.160.0000.03319.16
5.4.150.0030.03318.96
5.4.140.0030.07716.51
5.4.130.0030.07716.29
5.4.120.0000.06316.38
5.4.110.0000.04316.43
5.4.100.0000.05716.52
5.4.90.0030.03316.45
5.4.80.0030.05716.46
5.4.70.0000.03716.38
5.4.60.0000.04016.40
5.4.50.0030.03316.41
5.4.40.0030.06016.30
5.4.30.0070.03316.46
5.4.20.0000.03716.44
5.4.10.0000.03716.33
5.4.00.0070.03015.96
5.3.290.0170.07014.73
5.3.280.0030.03714.71
5.3.270.0000.04314.61
5.3.260.0000.04014.55
5.3.250.0000.03714.74
5.3.240.0030.06014.62
5.3.230.0000.05014.52
5.3.220.0070.07014.52
5.3.210.0030.07014.69
5.3.200.0030.08014.58
5.3.190.0030.03714.70
5.3.180.0030.07014.54
5.3.170.0070.03314.49
5.3.160.0000.03714.66
5.3.150.0030.07014.54
5.3.140.0070.03314.70
5.3.130.0070.03714.58
5.3.120.0070.03714.61
5.3.110.0030.05314.50
5.3.100.0030.03314.10
5.3.90.0030.03714.01
5.3.80.0030.04713.95
5.3.70.0030.03314.08
5.3.60.0030.03314.02
5.3.50.0070.03314.09
5.3.40.0030.03313.95
5.3.30.0000.03713.97
5.3.20.0000.05313.60
5.3.10.0000.03313.59
5.3.00.0000.04313.71
5.2.170.0000.04012.18
5.2.160.0000.04012.18
5.2.150.0000.03012.18
5.2.140.0000.03012.18
5.2.130.0000.02712.18
5.2.120.0000.02712.18
5.2.110.0030.04012.18
5.2.100.0000.03712.18
5.2.90.0000.03012.18
5.2.80.0000.03012.18
5.2.70.0070.02312.18
5.2.60.0000.04312.18
5.2.50.0030.04012.18
5.2.40.0000.02312.18
5.2.30.0000.05312.18
5.2.20.0000.02712.18
5.2.10.0000.03012.18
5.2.00.0030.02712.18
5.1.60.0030.02312.18
5.1.50.0000.02712.18
5.1.40.0000.02012.18
5.1.30.0030.02712.18
5.1.20.0030.02312.18
5.1.10.0000.02712.18
5.1.00.0000.02312.18
5.0.50.0000.02012.18
5.0.40.0000.02012.18
5.0.30.0000.02712.18
5.0.20.0030.01312.18
5.0.10.0000.02012.18
5.0.00.0030.02712.18
4.4.90.0030.03312.18
4.4.80.0000.02012.18
4.4.70.0000.01712.18
4.4.60.0000.01312.18
4.4.50.0000.01712.18
4.4.40.0000.02312.18
4.4.30.0000.01312.18
4.4.20.0000.02012.18
4.4.10.0000.01712.18
4.4.00.0000.03712.18
4.3.110.0070.02712.18
4.3.100.0030.01012.18
4.3.90.0000.01712.18
4.3.80.0030.02312.18
4.3.70.0000.03312.18
4.3.60.0030.01712.18
4.3.50.0030.01012.18
4.3.40.0030.01712.18
4.3.30.0000.01712.18
4.3.20.0000.01712.18
4.3.10.0000.01312.18
4.3.00.0030.02712.18

preferences:
37.64 ms | 400 KiB | 5 Q