3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array=array("a"=>aaa,"b"=>aaaaadddd); $array = array_combine(array_map(function($k){ return 'prefix'.$k; }, array_keys($array)) , $array ); echo "<pre>";print_r($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)
8.3.60.0100.01016.63
8.3.50.0110.00817.45
8.3.40.0070.00718.82
8.3.30.0090.00918.74
8.3.20.0000.00818.91
8.3.10.0050.00318.73
8.3.00.0040.00419.50
8.2.180.0120.00316.88
8.2.170.0150.00022.96
8.2.160.0060.00918.89
8.2.150.0000.00824.18
8.2.140.0000.00924.66
8.2.130.0040.00426.16
8.2.120.0080.00019.54
8.2.110.0040.00422.41
8.2.100.0060.00617.67
8.2.90.0090.00019.76
8.2.80.0040.00418.05
8.2.70.0000.00817.93
8.2.60.0050.00318.22
8.2.50.0000.00918.10
8.2.40.0000.00719.32
8.2.30.0040.00419.25
8.2.20.0000.00917.80
8.2.10.0040.00419.41
8.2.00.0060.00317.88
8.1.280.0140.00725.92
8.1.270.0000.00823.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0070.00717.52
8.1.230.0000.01122.63
8.1.220.0060.00317.76
8.1.210.0090.00018.84
8.1.200.0050.00517.23
8.1.190.0000.00917.23
8.1.180.0030.00618.10
8.1.170.0060.00318.49
8.1.160.0000.00718.79
8.1.150.0080.00018.78
8.1.140.0040.00417.38
8.1.130.0000.00819.09
8.1.120.0040.00417.27
8.1.110.0050.00217.42
8.1.100.0070.00017.39
8.1.90.0050.00217.43
8.1.80.0040.00317.39
8.1.70.0000.00717.34
8.1.60.0080.00017.54
8.1.50.0030.00617.43
8.1.40.0060.00317.42
8.1.30.0070.00317.56
8.1.20.0000.00717.48
8.1.10.0040.00417.50
8.1.00.0040.00417.31
8.0.300.0000.00719.73
8.0.290.0000.00816.58
8.0.280.0030.00318.43
8.0.270.0040.00417.17
8.0.260.0000.00616.94
8.0.250.0000.00816.89
8.0.240.0050.00317.04
8.0.230.0080.00016.90
8.0.220.0000.00816.84
8.0.210.0070.00016.86
8.0.200.0030.00316.86
8.0.190.0000.00816.95
8.0.180.0000.00716.93
8.0.170.0090.00016.98
8.0.160.0030.00716.84
8.0.150.0000.00816.78
8.0.140.0040.00416.91
8.0.130.0000.00513.39
8.0.120.0030.00616.91
8.0.110.0030.00316.97
8.0.100.0040.00416.97
8.0.90.0000.00716.79
8.0.80.0060.00916.99
8.0.70.0000.00816.91
8.0.60.0040.00416.83
8.0.50.0040.00416.98
8.0.30.0070.01417.11
8.0.20.0110.00817.20
8.0.10.0000.00816.90
8.0.00.0130.00616.68
7.4.330.0000.00413.04
7.4.320.0000.00616.61
7.4.300.0050.00216.61
7.4.290.0000.00716.43
7.4.280.0000.00816.48
7.4.270.0000.00716.58
7.4.260.0000.00713.29
7.4.250.0060.00316.48
7.4.240.0040.00416.44
7.4.230.0080.00016.39
7.4.220.0060.01616.65
7.4.210.0030.01416.63
7.4.200.0000.00716.32
7.4.190.0030.00516.76
7.4.160.0090.00916.23
7.4.150.0120.00616.54
7.4.140.0090.00917.86
7.4.130.0240.00016.41
7.4.120.0100.00716.42
7.4.110.0060.01216.50
7.4.100.0060.01216.65
7.4.90.0070.01016.47
7.4.80.0140.00319.39
7.4.70.0070.01016.57
7.4.60.0030.01316.57
7.4.50.0000.00416.46
7.4.40.0060.00916.43
7.4.30.0110.00716.66
7.4.10.0080.00614.83
7.4.00.0100.00614.93
7.3.330.0000.00613.39
7.3.320.0030.00313.41
7.3.310.0070.00016.18
7.3.300.0060.00016.16
7.3.290.0100.00816.36
7.3.280.0060.00916.38
7.3.270.0000.01816.25
7.3.260.0080.00916.43
7.3.240.0100.00716.46
7.3.230.0060.01216.58
7.3.210.0120.01216.29
7.3.200.0050.01016.39
7.3.190.0000.01616.67
7.3.180.0100.00716.47
7.3.170.0130.00316.49
7.3.160.0080.00816.52
7.3.130.0070.01014.70
7.3.120.0070.01015.02
7.3.110.0130.00314.44
7.3.100.0000.01114.89
7.3.90.0070.01014.66
7.3.80.0060.00614.71
7.3.70.0040.00814.94
7.3.60.0000.01814.91
7.3.50.0100.00314.89
7.3.40.0000.01114.62
7.3.30.0030.01014.62
7.3.20.0030.01016.79
7.3.10.0110.00216.53
7.3.00.0080.00416.62
7.2.330.0120.00916.57
7.2.320.0170.00016.66
7.2.310.0100.00616.57
7.2.300.0080.00816.68
7.2.290.0150.00316.54
7.2.260.0150.00414.91
7.2.250.0030.01414.97
7.2.240.0080.00815.19
7.2.230.0000.01214.78
7.2.220.0040.01115.25
7.2.210.0070.00315.00
7.2.200.0060.00315.04
7.2.190.0040.01215.18
7.2.180.0030.00714.72
7.2.170.0070.00715.00
7.2.160.0080.00814.92
7.2.150.0120.00616.83
7.2.140.0110.00716.70
7.2.130.0050.00816.84
7.2.120.0060.00716.95
7.2.110.0080.00616.97
7.2.100.0110.00416.96
7.2.90.0040.00917.04
7.2.80.0050.00916.87
7.2.70.0060.00716.83
7.2.60.0050.00716.92
7.2.50.0020.01016.89
7.2.40.0050.00716.89
7.2.30.0070.00816.99
7.2.20.0060.00816.94
7.2.10.0050.00716.98
7.2.00.0060.00717.63
7.1.330.0090.00616.02
7.1.320.0030.01015.78
7.1.310.0090.00316.08
7.1.300.0030.00615.88
7.1.290.0090.00315.60
7.1.280.0000.01415.44
7.1.270.0000.01115.76
7.1.260.0030.01315.78
7.1.250.0060.00415.72
7.1.240.0100.00315.81
7.1.230.0030.00915.61
7.1.220.0090.00615.86
7.1.210.0070.00715.93
7.1.200.0050.00715.73
7.1.190.0030.00715.90
7.1.180.0000.01515.52
7.1.170.0080.00415.77
7.1.160.0080.00615.43
7.1.150.0080.00415.88
7.1.140.0040.00815.60
7.1.130.0060.00915.59
7.1.120.0040.01115.86
7.1.110.0030.01015.52
7.1.100.0040.00716.99
7.1.90.0070.00715.84
7.1.80.0120.00015.73
7.1.70.0010.00716.35
7.1.60.0040.00917.48
7.1.50.0060.00816.46
7.1.40.0000.01415.75
7.1.30.0070.00415.63
7.1.20.0000.00815.52
7.1.10.0060.01015.69
7.1.00.0030.04319.00
7.0.330.0030.01015.60
7.0.320.0060.00915.36
7.0.310.0070.00315.57
7.0.300.0000.00915.24
7.0.290.0000.00915.57
7.0.280.0060.00615.19
7.0.270.0090.00615.32
7.0.260.0030.01015.32
7.0.250.0030.01215.33
7.0.240.0060.00615.46
7.0.230.0090.00015.53
7.0.220.0030.01015.17
7.0.210.0000.01015.53
7.0.200.0060.00615.97
7.0.190.0040.01115.16
7.0.180.0030.01015.43
7.0.170.0030.00615.10
7.0.160.0040.01115.54
7.0.150.0030.01015.45
7.0.140.0040.04218.71
7.0.130.0030.00615.50
7.0.120.0040.02018.74
7.0.110.0070.00715.22
7.0.100.0040.01015.45
7.0.90.0030.00915.52
7.0.80.0000.01115.31
7.0.70.0070.00715.48
7.0.60.0040.03917.67
7.0.50.0080.04316.47
7.0.40.0100.03716.73
7.0.30.0170.04016.86
7.0.20.0150.02716.78
7.0.10.0090.02316.77
7.0.00.0050.02716.84
5.6.400.0110.00414.62
5.6.390.0030.01013.87
5.6.380.0060.00314.25
5.6.370.0110.00414.41
5.6.360.0040.00814.18
5.6.350.0000.01014.09
5.6.340.0030.00714.36
5.6.330.0000.01514.24
5.6.320.0040.00714.13
5.6.310.0060.00314.32
5.6.300.0100.00714.15
5.6.290.0100.00014.57
5.6.280.0100.00314.50
5.6.270.0090.00014.43
5.6.260.0070.00714.32
5.6.250.0070.00714.25
5.6.240.0060.00914.32
5.6.230.0120.00314.63
5.6.220.0110.00314.14
5.6.210.0060.03717.60
5.6.200.0060.02316.25
5.6.190.0070.04717.51
5.6.180.0220.03817.38
5.6.170.0160.04117.38
5.6.160.0110.03817.34
5.6.150.0050.02316.11
5.6.140.0060.04316.31
5.6.130.0070.03716.26
5.6.120.0080.02317.80
5.6.110.0050.04317.76
5.6.100.0100.03017.89
5.6.90.0110.04017.62
5.6.80.0090.02017.34
5.6.70.0070.00714.25
5.6.60.0090.00014.22
5.6.50.0030.01013.98
5.6.40.0060.00314.09
5.6.30.0030.01014.28
5.6.20.0070.00414.11
5.6.10.0000.01414.51
5.6.00.0050.00514.27
5.5.380.0070.00414.28
5.5.370.0110.00414.29
5.5.360.0090.00614.10
5.5.350.0070.02017.40
5.5.340.0050.04615.92
5.5.330.0080.04517.49
5.5.320.1980.02717.27
5.5.310.0130.03017.30
5.5.300.0050.02516.22
5.5.290.0050.02515.98
5.5.280.0020.04617.54
5.5.270.0130.02317.53
5.5.260.0050.04817.55
5.5.250.0070.03117.30
5.5.240.0060.04117.14
5.5.230.0030.00914.07
5.5.220.0060.00614.27
5.5.210.0070.00714.09
5.5.200.0070.00714.02
5.5.190.0070.00713.98
5.5.180.0070.00714.15
5.5.170.0090.00613.78
5.5.160.0040.00414.02
5.5.150.0030.01214.17
5.5.140.0060.00614.00
5.5.130.0080.00414.30
5.5.120.0030.00614.25
5.5.110.0060.00614.29
5.5.100.0040.01114.25
5.5.90.0090.00314.25
5.5.80.0060.00914.07
5.5.70.0000.00914.25
5.5.60.0000.01114.41
5.5.50.0090.00614.20
5.5.40.0030.01014.43
5.5.30.0000.01414.29
5.5.20.0070.00714.43
5.5.10.0040.00814.06
5.5.00.0060.00913.71
5.4.450.0030.03016.29
5.4.440.0050.02716.25
5.4.430.0020.04516.45
5.4.420.0040.04316.42
5.4.410.0050.03716.34
5.4.400.0050.03416.09
5.4.390.0070.03216.16
5.4.380.0020.04316.22
5.4.370.0050.03016.10
5.4.360.0040.02316.26
5.4.350.0030.02216.14
5.4.340.0050.02016.10
5.4.330.0080.00313.32
5.4.320.0000.03316.23
5.4.310.0030.02016.18
5.4.300.0100.01816.22
5.4.290.0030.04316.16
5.4.280.0050.04016.25
5.4.270.0100.01616.28
5.4.260.0020.03216.28
5.4.250.0080.01816.09
5.4.240.0020.02516.08
5.4.230.0040.02016.28
5.4.220.0040.02916.08
5.4.210.0040.02516.23
5.4.200.0050.02316.08
5.4.190.0020.02516.27
5.4.180.0050.03016.28
5.4.170.0020.02516.28
5.4.160.0070.01816.25
5.4.150.0070.03816.22
5.4.140.0080.03814.94
5.4.130.0080.03714.84
5.4.120.0090.01714.86
5.4.110.0020.03514.91
5.4.100.0050.02114.93
5.4.90.0030.03514.88
5.4.80.0070.01814.82
5.4.70.0060.01814.85
5.4.60.0000.02414.89
5.4.50.0150.01714.82
5.4.40.0060.02514.84
5.4.30.0050.02214.85
5.4.20.0080.02914.85
5.4.10.0020.02214.79
5.4.00.0080.04314.58
5.3.290.0050.03614.01
5.3.280.0040.02413.97
5.3.270.0030.02213.97
5.3.260.0050.02113.96
5.3.250.0070.03113.99
5.3.240.0080.03613.97
5.3.230.0180.01713.90
5.3.220.0060.02013.97
5.3.210.0070.03013.90
5.3.200.0070.03313.96
5.3.190.0020.04013.94
5.3.180.0040.02113.97
5.3.170.0020.02213.98
5.3.160.0050.02114.03
5.3.150.0080.02113.90
5.3.140.0030.03513.90
5.3.130.0020.02713.94
5.3.120.0100.01813.93
5.3.110.0100.01713.94
5.3.100.0030.04013.68
5.3.90.0100.03713.67
5.3.80.0050.03313.68
5.3.70.0020.02113.67
5.3.60.0050.01813.67
5.3.50.0000.02713.59
5.3.40.0020.02513.67
5.3.30.0050.01813.61
5.3.20.0050.02313.53
5.3.10.0010.02313.49
5.3.00.0030.02113.56
5.2.170.0030.03011.00
5.2.160.0030.02711.11
5.2.150.0000.03011.00
5.2.140.0030.02711.13
5.2.130.0000.03011.09
5.2.120.0000.03011.00
5.2.110.0000.03010.92
5.2.100.0030.02711.08
5.2.90.0000.03011.04
5.2.80.0030.02711.11
5.2.70.0000.03011.03
5.2.60.0000.03011.02
5.2.50.0030.02710.92
5.2.40.0030.02711.00
5.2.30.0100.02011.04
5.2.20.0000.03010.86
5.2.10.0000.03010.87
5.2.00.0030.02710.71
5.1.60.0000.0239.96
5.1.50.0000.0279.97
5.1.40.0000.02710.02
5.1.30.0030.02710.42
5.1.20.0030.02710.23
5.1.10.0100.01710.04
5.1.00.0000.02710.11
5.0.50.0030.0209.07
5.0.40.0030.0179.07
5.0.30.0000.0339.07
5.0.20.0030.0179.07
5.0.10.0000.0209.07
5.0.00.0000.0309.07
4.4.90.0000.0179.07
4.4.80.0030.0139.07
4.4.70.0030.0139.07
4.4.60.0030.0139.07
4.4.50.0030.0139.07
4.4.40.0000.0239.07
4.4.30.0030.0139.07
4.4.20.0000.0179.07
4.4.10.0000.0179.07
4.4.00.0000.0339.07
4.3.110.0000.0179.07
4.3.100.0030.0139.07
4.3.90.0000.0139.07
4.3.80.0100.0239.07
4.3.70.0000.0139.07
4.3.60.0000.0139.07
4.3.50.0000.0139.07
4.3.40.0000.0239.07
4.3.30.0000.0139.07
4.3.20.0000.0139.07
4.3.10.0000.0179.07
4.3.00.0000.0139.07

preferences:
68.08 ms | 400 KiB | 5 Q