3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(0 => 100, "color" => "red"); $keys = array_keys($array); print_r($keys[color]); ?>

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)
8.3.60.0070.00716.75
8.3.50.0120.01021.94
8.3.40.0110.00318.79
8.3.30.0070.00718.89
8.3.20.0000.00920.13
8.3.10.0050.00221.78
8.3.00.0000.00920.69
8.2.180.0120.00616.75
8.2.170.0110.00722.96
8.2.160.0070.01419.45
8.2.150.0050.00224.18
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0000.00819.66
8.2.110.0060.00320.33
8.2.100.0120.00018.09
8.2.90.0090.00019.21
8.2.80.0000.00817.97
8.2.70.0000.00817.63
8.2.60.0040.00417.93
8.2.50.0060.00318.07
8.2.40.0040.00418.03
8.2.30.0070.00018.03
8.2.20.0030.00617.80
8.2.10.0000.00718.23
8.2.00.0080.00017.71
8.1.280.0090.00925.92
8.1.270.0060.00320.65
8.1.260.0000.00826.35
8.1.250.0070.00028.09
8.1.240.0000.00923.72
8.1.230.0030.00819.22
8.1.220.0040.00417.79
8.1.210.0050.00318.77
8.1.200.0060.00317.25
8.1.190.0030.00517.23
8.1.180.0000.00818.10
8.1.170.0030.00518.57
8.1.160.0040.00422.07
8.1.150.0040.00418.89
8.1.140.0040.00419.28
8.1.130.0040.00417.87
8.1.120.0030.00317.48
8.1.110.0040.00417.35
8.1.100.0040.00417.32
8.1.90.0070.00317.52
8.1.80.0000.00717.45
8.1.70.0050.00317.41
8.1.60.0030.00617.62
8.1.50.0040.00417.34
8.1.40.0000.00817.57
8.1.30.0030.00617.64
8.1.20.0000.00817.56
8.1.10.0000.00817.54
8.1.00.0070.00017.49
8.0.300.0080.00018.77
8.0.290.0000.00716.88
8.0.280.0000.00718.43
8.0.270.0000.00717.16
8.0.260.0030.00317.26
8.0.250.0030.00316.95
8.0.240.0070.00016.94
8.0.230.0050.00317.03
8.0.220.0030.00316.97
8.0.210.0030.00316.91
8.0.200.0040.00417.00
8.0.190.0040.00416.89
8.0.180.0040.00416.99
8.0.170.0060.00316.86
8.0.160.0040.00416.93
8.0.150.0040.00416.89
8.0.140.0040.00416.91
8.0.130.0030.00313.46
8.0.120.0030.00616.89
8.0.110.0000.00716.91
8.0.100.0040.00416.75
8.0.90.0050.00216.91
8.0.80.0040.01016.92
8.0.70.0040.00316.86
8.0.60.0030.00616.98
8.0.50.0040.00416.86
8.0.30.0140.01317.14
8.0.20.0080.01317.40
8.0.10.0040.00416.88
8.0.00.0120.00916.60
7.4.330.0000.00615.14
7.4.320.0030.00316.64
7.4.300.0000.00616.44
7.4.290.0000.00816.50
7.4.280.0030.00716.38
7.4.270.0000.00716.51
7.4.260.0030.00616.45
7.4.250.0000.00716.51
7.4.240.0050.00216.54
7.4.230.0000.00716.66
7.4.220.0200.00316.48
7.4.210.0090.00616.51
7.4.200.0080.00016.52
7.4.160.0150.00016.49
7.4.150.0090.00917.40
7.4.140.0090.00717.86
7.4.130.0090.00816.38
7.4.120.0100.00816.44
7.4.110.0120.00616.56
7.4.100.0070.01416.65
7.4.90.0110.00716.58
7.4.80.0100.00616.55
7.4.70.0060.01616.43
7.4.60.0100.00716.41
7.4.50.0000.00416.30
7.4.40.0030.01316.62
7.4.30.0080.01516.59
7.4.00.0090.00615.00
7.3.330.0000.00513.16
7.3.320.0090.00313.16
7.3.310.0000.00716.25
7.3.300.0030.00316.32
7.3.290.0060.00916.27
7.3.280.0080.00916.25
7.3.270.0150.00417.40
7.3.260.0030.01616.35
7.3.250.0100.00716.42
7.3.240.0040.01216.50
7.3.230.0120.00616.39
7.3.210.0130.00616.43
7.3.200.0150.00319.39
7.3.190.0090.00616.29
7.3.180.0090.00816.51
7.3.170.0100.00716.44
7.3.160.0090.00916.41
7.2.330.0130.00716.49
7.2.320.0030.01316.74
7.2.310.0150.00616.47
7.2.300.0060.01116.66
7.2.290.0090.00916.50
7.2.60.0030.01016.94
7.2.00.0000.01319.39
7.1.200.0060.00615.73
7.1.100.0040.00718.19
7.1.70.0050.00317.14
7.1.60.0110.01519.46
7.1.50.0070.01117.00
7.1.00.0100.09022.32
7.0.200.0070.00016.79
7.0.140.0070.04322.07
7.0.60.0100.07019.95
7.0.50.0170.07017.82
7.0.40.0030.04720.02
7.0.30.0200.08020.00
7.0.20.0300.06720.16
7.0.10.0100.08320.28
7.0.00.0100.04320.03
5.6.280.0000.07721.04
5.6.210.0130.06320.68
5.6.200.0130.07318.22
5.6.190.0100.08320.43
5.6.180.0470.03320.61
5.6.170.0330.05720.48
5.6.160.0170.05320.47
5.6.150.0070.05318.09
5.6.140.0130.07318.19
5.6.130.0030.04718.11
5.6.120.0130.06321.14
5.6.110.0070.08321.11
5.6.100.0070.05021.03
5.6.90.0100.08021.11
5.6.80.0130.07020.35
5.5.350.0330.07320.37
5.5.340.0000.04718.02
5.5.330.0070.08720.23
5.5.320.0030.04320.27
5.5.310.0370.08020.28
5.5.300.0100.07717.97
5.5.290.0070.08017.96
5.5.280.0170.06720.72
5.5.270.0070.08320.91
5.5.260.0100.05020.83
5.5.250.0100.08020.65
5.5.240.0070.07720.35
5.4.450.0600.06319.13
5.4.440.0270.05319.27
5.4.430.0200.05719.47
5.4.420.0170.05719.44
5.4.410.0230.05719.32
5.4.400.1000.05019.26
5.4.390.0100.06318.69
5.4.380.0200.05318.49
5.4.370.0230.05018.68
5.4.360.0270.04718.61
5.4.350.0130.06018.46
5.4.340.0130.05318.52
5.4.320.0100.06018.72
5.4.310.0200.06718.67
5.4.300.0200.06718.50
5.4.290.0300.05718.48
5.4.280.0070.06018.62
5.4.270.0270.04318.40
5.4.260.0170.07018.48
5.4.250.0200.06018.71
5.4.240.0130.05318.52
5.4.230.0270.05018.51
5.4.220.0230.07018.55
5.4.210.0130.05318.67
5.4.200.0130.05016.45
5.4.190.0070.06018.54
5.4.180.0170.05018.63
5.4.170.0130.05318.76
5.4.160.0130.05318.77
5.4.150.0200.04718.56
5.4.140.0100.05716.09
5.4.130.0100.05716.31
5.4.120.0300.05316.16
5.4.110.0100.05016.21
5.4.100.0170.04716.16
5.4.90.0130.07016.24
5.4.80.0100.07016.14
5.4.70.0200.06316.08
5.4.60.0170.05316.01
5.4.50.0100.05016.01
5.4.40.0200.04716.28
5.4.30.0170.04716.18
5.4.20.0300.03716.13
5.4.10.0200.05016.22
5.4.00.0130.04715.66
5.3.290.0200.05014.63
5.3.280.0100.05714.57
5.3.270.0130.06014.57
5.3.260.0170.05714.65
5.3.250.0130.05714.63
5.3.240.0170.05314.50
5.3.230.0170.05314.64
5.3.220.0270.05714.61
5.3.210.0270.04014.47
5.3.200.0100.05714.56
5.3.190.0270.04014.54
5.3.180.0200.05714.45
5.3.170.0130.06014.52
5.3.160.0130.07014.66
5.3.150.0170.05014.52
5.3.140.0300.04014.58
5.3.130.0270.04714.45
5.3.120.0170.06714.45
5.3.110.0130.06314.57
5.3.100.0130.07014.12
5.3.90.0200.06314.01
5.3.80.0200.06314.11
5.3.70.0170.06313.94
5.3.60.0070.07013.94
5.3.50.0170.05013.86
5.3.40.0070.06013.86
5.3.30.0130.05313.88
5.3.20.0200.04313.62
5.3.10.0100.06313.75
5.3.00.0200.05713.73
5.2.170.0100.04311.06
5.2.160.0230.04311.10
5.2.150.0130.05311.18
5.2.140.0130.05311.13
5.2.130.0130.04311.12
5.2.120.0070.05711.13
5.2.110.0130.05311.06
5.2.100.0100.05711.09
5.2.90.0170.05011.15
5.2.80.0130.05711.07
5.2.70.0170.04311.25
5.2.60.0100.04311.10
5.2.50.0130.04711.05
5.2.40.0100.04311.13
5.2.30.0170.03710.96
5.2.20.0070.04710.88
5.2.10.0100.04310.96
5.2.00.0030.04710.71
5.1.60.0100.03710.09
5.1.50.0030.05010.00
5.1.40.0070.05010.07
5.1.30.0170.04310.38
5.1.20.0130.03310.45
5.1.10.0170.03010.16
5.1.00.0130.03710.14
5.0.50.0100.0338.58
5.0.40.0100.0338.43
5.0.30.0100.0508.20
5.0.20.0130.0238.38
5.0.10.0100.0278.28
5.0.00.0030.0438.19
4.4.90.0000.0275.88
4.4.80.0030.0235.88
4.4.70.0100.0205.90
4.4.60.0030.0235.90
4.4.50.0170.0205.87
4.4.40.0130.0375.91
4.4.30.0030.0305.91
4.4.20.0100.0275.88
4.4.10.0070.0305.88
4.4.00.0030.0375.93
4.3.110.0030.0275.81
4.3.100.0000.0275.80
4.3.90.0030.0235.82
4.3.80.0130.0275.80
4.3.70.0100.0235.81
4.3.60.0100.0235.77
4.3.50.0130.0205.82
4.3.40.0070.0335.77
4.3.30.0000.0304.96
4.3.20.0000.0274.96
4.3.10.0100.0204.96
4.3.00.0130.01314.62

preferences:
56.41 ms | 401 KiB | 5 Q