3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(0 => 100, "color" => "red"); $keys = array_keys($array); print_r($keys[1]); echo $dd = count($key); ?>

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)
8.3.60.0180.00416.75
8.3.50.0110.00821.24
8.3.40.0110.00418.85
8.3.30.0070.00718.79
8.3.20.0000.00720.21
8.3.10.0090.00023.38
8.3.00.0080.00023.69
8.2.180.0070.01416.63
8.2.170.0120.00922.96
8.2.160.0100.00322.12
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0060.00317.75
8.2.110.0000.01022.07
8.2.100.0060.00617.75
8.2.90.0040.00419.15
8.2.80.0000.00817.97
8.2.70.0000.00817.50
8.2.60.0000.00717.80
8.2.50.0000.00818.07
8.2.40.0040.00421.13
8.2.30.0040.00419.79
8.2.20.0000.00917.80
8.2.10.0050.00218.07
8.2.00.0000.00818.11
8.1.280.0110.00325.92
8.1.270.0050.00520.32
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0060.00322.05
8.1.230.0120.00017.48
8.1.220.0030.00617.79
8.1.210.0000.00818.77
8.1.200.0030.00617.47
8.1.190.0000.00817.36
8.1.180.0080.00018.10
8.1.170.0060.00318.49
8.1.160.0070.00022.10
8.1.150.0080.00018.87
8.1.140.0040.00417.35
8.1.130.0000.00717.60
8.1.120.0070.00017.41
8.1.110.0040.00417.45
8.1.100.0080.00017.50
8.1.90.0030.00317.45
8.1.80.0040.00417.32
8.1.70.0000.00717.34
8.1.60.0080.00017.63
8.1.50.0000.00817.46
8.1.40.0050.00317.43
8.1.30.0000.00817.57
8.1.20.0000.00717.47
8.1.10.0070.00017.54
8.1.00.0030.00617.43
8.0.300.0040.00418.77
8.0.290.0070.00016.75
8.0.280.0000.00718.26
8.0.270.0040.00417.18
8.0.260.0050.00317.16
8.0.250.0070.00016.97
8.0.240.0070.00016.88
8.0.230.0000.00716.95
8.0.220.0000.00816.79
8.0.210.0070.00016.90
8.0.200.0030.00316.96
8.0.190.0040.00416.98
8.0.180.0000.00816.82
8.0.170.0000.00716.98
8.0.160.0080.00016.96
8.0.150.0000.00716.91
8.0.140.0000.00716.88
8.0.130.0000.00513.45
8.0.120.0030.00516.80
8.0.110.0040.00416.95
8.0.100.0000.00816.78
8.0.90.0040.00416.81
8.0.80.0100.00617.01
8.0.70.0000.00716.81
8.0.60.0040.00416.97
8.0.50.0070.00016.75
8.0.30.0130.00316.96
8.0.20.0090.01017.40
8.0.10.0000.00716.88
8.0.00.0130.00616.79
7.4.330.0030.00315.13
7.4.320.0020.00516.44
7.4.300.0000.00616.54
7.4.290.0030.00316.59
7.4.280.0000.00816.58
7.4.270.0030.00316.58
7.4.260.0000.00716.47
7.4.250.0030.00516.46
7.4.240.0010.00616.49
7.4.230.0000.00716.48
7.4.220.0130.00916.66
7.4.210.0050.01016.52
7.4.200.0030.00316.42
7.4.160.0120.00616.72
7.4.150.0100.00717.40
7.4.140.0080.01017.86
7.4.130.0080.01316.50
7.4.120.0100.00916.61
7.4.110.0100.00716.52
7.4.100.0090.00916.53
7.4.90.0150.00316.40
7.4.80.0030.01319.39
7.4.70.0100.00816.53
7.4.60.0090.00616.38
7.4.50.0030.00616.70
7.4.40.0060.01016.54
7.4.30.0220.00816.59
7.4.00.0090.00615.13
7.3.330.0000.00613.11
7.3.320.0000.00513.08
7.3.310.0040.00416.14
7.3.300.0030.00316.18
7.3.290.0070.00816.31
7.3.280.0070.00816.34
7.3.270.0100.01317.40
7.3.260.0070.01016.29
7.3.250.0130.00516.43
7.3.240.0100.01416.27
7.3.230.0060.01116.39
7.3.210.0160.00016.41
7.3.200.0070.01016.44
7.3.190.0080.00816.49
7.3.180.0060.00916.48
7.3.170.0080.00816.48
7.3.160.0060.01016.36
7.3.120.0060.01314.89
7.3.110.0110.00714.97
7.3.100.0070.00314.97
7.3.90.0130.00314.71
7.3.80.0070.00714.75
7.3.70.0030.01414.91
7.3.60.0040.01114.74
7.3.50.0100.00014.78
7.3.40.0070.01014.89
7.3.30.0030.01214.75
7.3.20.0030.01416.76
7.3.10.0100.00616.40
7.3.00.0090.00916.71
7.2.330.0040.01616.45
7.2.320.0110.00816.79
7.2.310.0140.00516.74
7.2.300.0070.01016.81
7.2.290.0140.00916.72
7.2.250.0080.01115.16
7.2.240.0070.01415.07
7.2.230.0120.00414.93
7.2.220.0060.00915.02
7.2.210.0070.00714.93
7.2.200.0100.00714.82
7.2.190.0100.00715.05
7.2.180.0100.00615.24
7.2.170.0090.00015.06
7.2.60.0060.00916.59
7.2.00.0040.01119.35
7.1.330.0070.01015.73
7.1.320.0060.00915.75
7.1.310.0100.00715.61
7.1.300.0070.00415.49
7.1.290.0100.00715.92
7.1.280.0090.00615.70
7.1.270.0110.00015.79
7.1.260.0080.00815.80
7.1.200.0040.01115.78
7.1.100.0100.00618.28
7.1.70.0030.00317.27
7.1.60.0030.01619.12
7.1.50.0030.01616.89
7.1.00.0070.07322.40
7.0.200.0030.00816.55
7.0.60.0100.08319.86
7.0.50.0100.07717.81
7.0.40.0000.08720.23
7.0.30.0670.06320.20
7.0.20.0430.06720.16
7.0.10.0300.08020.04
7.0.00.0070.05020.12
5.6.280.0070.05321.07
5.6.210.0070.08020.70
5.6.200.0070.08318.08
5.6.190.0070.04320.48
5.6.180.0430.07320.40
5.6.170.0300.07720.50
5.6.160.0030.04320.50
5.6.150.0000.04718.17
5.6.140.0070.08018.15
5.6.130.0130.06718.20
5.6.120.0030.05720.99
5.6.110.0000.09321.04
5.6.100.0270.06720.96
5.6.90.0170.07720.94
5.6.80.0000.04720.36
5.6.70.0230.07320.50
5.5.350.0200.06020.39
5.5.340.0100.07718.01
5.5.330.0130.06020.20
5.5.320.0030.03720.21
5.5.310.0300.05720.30
5.5.300.0030.04017.98
5.5.290.0130.07317.91
5.5.280.0030.08320.63
5.5.270.0030.07720.66
5.5.260.0000.04320.76
5.5.250.0030.08320.45
5.5.240.0130.05020.15
5.4.450.0770.05319.48
5.4.440.0570.06019.26
5.4.430.0630.07019.58
5.4.420.0500.06019.30
5.4.410.0500.06019.41
5.4.400.0570.05318.93
5.4.390.0430.05718.98
5.4.380.0430.05319.12
5.4.370.0500.05319.22
5.4.360.0500.04719.30
5.4.350.0670.04319.22
5.4.340.0670.05719.13
5.4.320.0500.05719.30
5.4.310.0700.05319.05
5.4.300.0600.04719.28
5.4.290.0600.06319.14
5.4.280.0570.05718.98
5.4.270.0700.07019.28
5.4.260.0700.06319.30
5.4.250.0470.06019.14
5.4.240.0730.06718.98
5.4.230.0570.05719.13
5.4.220.0530.05719.14
5.4.210.0630.04719.25
5.4.200.0600.06016.71
5.4.190.0670.04019.27
5.4.180.0430.05319.13
5.4.170.0500.05019.28
5.4.160.0430.06019.27
5.4.150.0470.06019.08
5.4.140.0570.05316.43
5.4.130.0530.05016.31
5.4.120.0630.04016.32
5.4.110.0630.04716.18
5.4.100.0500.06716.34
5.4.90.0430.05316.46
5.4.80.0600.04316.41
5.4.70.0530.05316.34
5.4.60.0530.05716.29
5.4.50.0470.05716.46
5.4.40.0500.05316.14
5.4.30.0600.04316.21
5.4.20.0600.06016.28
5.4.10.0800.04716.56
5.4.00.0570.04315.67
5.3.290.0530.06014.50
5.3.280.0630.05014.57
5.3.270.0500.05714.46
5.3.260.0530.06314.44
5.3.250.0530.05314.44
5.3.240.0570.05314.58
5.3.230.0470.05714.57
5.3.220.0470.05014.58
5.3.210.0470.05314.39
5.3.200.0600.07014.36
5.3.190.0570.04714.42
5.3.180.0500.05314.54
5.3.170.0630.05014.35
5.3.160.0400.06014.42
5.3.150.0530.06014.44
5.3.140.0430.04714.65
5.3.130.0370.06014.55
5.3.120.0500.05314.52
5.3.110.0500.05714.53
5.3.100.0570.04713.89
5.3.90.0700.04714.00
5.3.80.0570.05314.11
5.3.70.0700.05714.11
5.3.60.0500.05013.88
5.3.50.0630.06013.82
5.3.40.0430.05713.78
5.3.30.0530.04313.89
5.3.20.0530.04713.46
5.3.10.0470.05013.43
5.3.00.0570.04313.59
5.2.170.0430.04010.98
5.2.160.0430.04011.04
5.2.150.0370.05011.13
5.2.140.0470.03711.00
5.2.130.0300.04311.04
5.2.120.0330.04710.90
5.2.110.0500.03310.94
5.2.100.0400.03310.90
5.2.90.0370.04710.90
5.2.80.0370.04710.94
5.2.70.0400.04311.25
5.2.60.0470.03710.88
5.2.50.0370.04710.97
5.2.40.0370.03710.82
5.2.30.0400.03310.81
5.2.20.0430.03710.78
5.2.10.0370.03710.86
5.2.00.0300.04310.62
5.1.60.0370.0339.96
5.1.50.0400.02710.14
5.1.40.0370.0379.89
5.1.30.0370.03310.23
5.1.20.0330.04010.24
5.1.10.0330.03710.11
5.1.00.0270.05010.29
5.0.50.0230.0308.60
5.0.40.0170.0278.48
5.0.30.0230.0408.15
5.0.20.0230.0238.13
5.0.10.0200.0278.24
5.0.00.0200.0408.30
4.4.90.0130.0236.23
4.4.80.0130.0236.23
4.4.70.0170.0206.23
4.4.60.0200.0206.23
4.4.50.0130.0276.23
4.4.40.0130.0376.23
4.4.30.0100.0306.23
4.4.20.0230.0206.23
4.4.10.0170.0236.23
4.4.00.0230.0276.23
4.3.110.0170.0236.23
4.3.100.0170.0206.23
4.3.90.0170.0236.23
4.3.80.0200.0306.23
4.3.70.0170.0206.23
4.3.60.0170.0236.23
4.3.50.0130.0236.23
4.3.40.0200.0306.23
4.3.30.0100.0236.23
4.3.20.0100.0236.23
4.3.10.0170.0206.23
4.3.00.0100.0207.11

preferences:
58.19 ms | 401 KiB | 5 Q