3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(5612 => 'my note'); $keys = array_keys($array); print_r($keys[$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)
8.3.40.0100.01018.96
8.3.30.0140.00019.09
8.3.20.0040.00420.14
8.3.10.0080.00023.66
8.3.00.0060.00319.02
8.2.170.0030.01022.96
8.2.160.0100.00320.57
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0030.00526.16
8.2.120.0040.00420.88
8.2.110.0060.00322.09
8.2.100.0030.00917.72
8.2.90.0060.00319.23
8.2.80.0060.00317.97
8.2.70.0030.00617.63
8.2.60.0040.00417.93
8.2.50.0060.00318.07
8.2.40.0060.00319.88
8.2.30.0050.00318.18
8.2.20.0040.00417.80
8.2.10.0000.00817.94
8.2.00.0040.00417.66
8.1.270.0040.00424.66
8.1.260.0030.00626.35
8.1.250.0000.00728.09
8.1.240.0000.00923.79
8.1.230.0080.00319.05
8.1.220.0060.00317.79
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0030.00617.10
8.1.180.0080.00018.88
8.1.170.0070.00318.38
8.1.160.0000.00721.87
8.1.150.0040.00418.48
8.1.140.0040.00417.37
8.1.130.0000.00717.73
8.1.120.0000.00717.44
8.1.110.0100.00017.29
8.1.100.0000.00717.39
8.1.90.0000.00717.43
8.1.80.0040.00417.25
8.1.70.0040.00417.34
8.1.60.0040.00417.54
8.1.50.0000.00817.44
8.1.40.0040.00417.44
8.1.30.0040.00417.63
8.1.20.0040.00417.57
8.1.10.0000.00717.39
8.1.00.0050.00317.31
8.0.300.0000.00718.77
8.0.290.0050.00317.04
8.0.280.0030.00318.32
8.0.270.0000.00717.23
8.0.260.0000.00617.20
8.0.250.0040.00416.93
8.0.240.0000.00716.96
8.0.230.0070.00016.98
8.0.220.0030.00316.94
8.0.210.0000.00716.91
8.0.200.0030.00316.97
8.0.190.0050.00216.94
8.0.180.0050.00316.87
8.0.170.0000.00716.92
8.0.160.0000.00716.89
8.0.150.0040.00416.86
8.0.140.0000.00816.75
8.0.130.0030.00313.33
8.0.120.0000.00816.88
8.0.110.0080.00016.84
8.0.100.0000.00716.76
8.0.90.0040.00416.84
8.0.80.0120.00916.84
8.0.70.0080.00016.96
8.0.60.0070.00016.83
8.0.50.0070.00016.78
8.0.30.0120.00916.87
8.0.20.0100.00917.40
8.0.10.0050.00316.90
8.0.00.0060.01116.66
7.4.330.0030.00315.08
7.4.320.0000.00616.40
7.4.300.0000.00716.56
7.4.290.0000.00716.45
7.4.280.0040.00416.41
7.4.270.0000.00716.55
7.4.260.0030.00316.41
7.4.250.0040.00416.39
7.4.240.0080.00016.50
7.4.230.0000.00716.58
7.4.220.0130.01016.55
7.4.210.0080.00816.55
7.4.200.0070.00016.35
7.4.190.0000.00716.68
7.4.160.0130.00316.62
7.4.150.0070.01017.40
7.4.140.0090.00917.86
7.4.130.0100.00716.46
7.4.120.0160.00516.48
7.4.110.0040.01416.29
7.4.100.0060.01616.62
7.4.90.0060.01316.42
7.4.80.0070.01419.39
7.4.70.0060.00916.57
7.4.60.0150.00416.50
7.4.50.0030.00316.58
7.4.40.0060.01316.33
7.4.30.0000.01616.54
7.4.00.0090.00714.81
7.3.330.0050.00013.12
7.3.320.0000.00513.24
7.3.310.0000.00716.09
7.3.300.0000.00616.27
7.3.290.0040.01216.31
7.3.280.0070.01116.31
7.3.270.0140.00417.40
7.3.260.0090.01716.23
7.3.250.0080.01216.45
7.3.240.0000.01716.40
7.3.230.0120.00416.40
7.3.210.0070.01016.67
7.3.200.0100.01019.39
7.3.190.0030.01316.30
7.3.180.0080.00716.35
7.3.170.0070.00716.27
7.3.160.0060.00916.21
7.3.120.0050.00814.62
7.3.110.0030.01014.68
7.3.100.0040.01114.76
7.3.90.0130.00014.91
7.3.80.0040.00414.96
7.3.70.0070.01014.59
7.3.60.0030.01014.68
7.3.50.0030.00714.50
7.3.40.0060.00614.67
7.3.30.0030.00914.62
7.3.20.0020.00716.70
7.3.10.0070.01016.63
7.3.00.0070.00716.69
7.2.330.0090.00916.26
7.2.320.0090.00916.19
7.2.310.0060.01216.60
7.2.300.0130.00316.63
7.2.290.0000.02216.66
7.2.250.0040.01515.16
7.2.240.0040.01614.67
7.2.230.0130.00314.81
7.2.220.0040.00714.60
7.2.210.0100.00615.15
7.2.200.0060.01215.11
7.2.190.0040.01114.92
7.2.180.0000.01114.90
7.2.170.0070.00714.84
7.2.60.0120.00016.87
7.1.330.0060.01015.89
7.1.320.0030.00915.70
7.1.310.0090.00315.91
7.1.300.0100.00315.91
7.1.290.0040.00415.98
7.1.280.0000.00816.00
7.1.270.0000.01215.69
7.1.260.0000.01715.87
7.1.200.0090.00615.84
7.1.70.0030.00316.87
7.1.60.0100.01019.46
7.1.50.0120.01216.74
7.1.00.0070.07322.43
7.0.200.0050.00316.70
7.0.140.0000.07722.09
7.0.60.0130.07019.85
7.0.50.0070.05017.78
7.0.40.0100.04720.30
7.0.30.0270.07720.18
7.0.20.0270.04720.18
7.0.10.0170.05719.99
7.0.00.0070.07020.09
5.6.280.0070.07021.04
5.6.210.0100.07720.68
5.6.200.0000.04718.12
5.6.190.0100.03720.43
5.6.180.0070.04320.27
5.6.170.0270.08020.42
5.6.160.0100.07720.49
5.6.150.0100.06718.22
5.6.140.0030.04018.12
5.6.130.0070.08318.12
5.6.120.0030.06021.13
5.6.110.0030.04321.11
5.6.100.0100.07720.99
5.6.90.0070.08020.96
5.6.80.0130.07320.34
5.5.350.0030.07720.33
5.5.340.0030.05317.91
5.5.330.0070.07020.19
5.5.320.0170.04720.24
5.5.310.0230.07720.27
5.5.300.0030.04318.02
5.5.290.0100.07318.02
5.5.280.0070.08320.73
5.5.270.0030.08720.63
5.5.260.0070.08320.75
5.5.250.0070.08320.67
5.5.240.0070.07320.22
5.4.450.0900.05319.27
5.4.440.0930.06319.32
5.4.430.0870.09019.66
5.4.420.0970.08019.22
5.4.410.0600.05019.04
5.4.400.1630.07018.92
5.4.390.1200.06719.08
5.4.380.0130.07318.46
5.4.370.0130.05318.60
5.4.360.0100.05718.77
5.4.350.0130.05718.77
5.4.340.0130.07318.57
5.4.320.0040.03712.45
5.4.310.0050.04412.45
5.4.300.0040.04112.45
5.4.290.0080.04312.45
5.4.280.0060.03712.34
5.4.270.0050.03812.35
5.4.260.0050.04012.35
5.4.250.0050.03912.35
5.4.240.0100.03312.35
5.4.230.0080.04212.34
5.4.220.0110.04112.34
5.4.210.0080.03912.34
5.4.200.0040.04412.34
5.4.190.0070.04312.33
5.4.180.0070.04212.33
5.4.170.0060.04612.35
5.4.160.0070.04512.34
5.4.150.0070.03412.34
5.4.140.0070.03612.02
5.4.130.0090.03312.01
5.4.120.0070.04811.96
5.4.110.0070.05611.96
5.4.100.0090.04911.96
5.4.90.0080.05111.96
5.4.80.0040.05411.96
5.4.70.0090.04511.95
5.4.60.0090.04411.96
5.4.50.0080.04811.96
5.4.40.0080.03811.95
5.4.30.0090.04611.95
5.4.20.0120.03711.95
5.4.10.0060.03911.94
5.4.00.0080.03811.44
5.3.290.0050.04412.80
5.3.280.0080.04912.71
5.3.270.0110.04912.72
5.3.260.0130.04312.72
5.3.250.0120.03312.72
5.3.240.0100.03412.72
5.3.230.0080.04412.71
5.3.220.0030.04112.68
5.3.210.0040.04412.68
5.3.200.0100.03312.68
5.3.190.0130.04312.68
5.3.180.0070.03612.68
5.3.170.0060.03812.67
5.3.160.0070.03612.67
5.3.150.0070.04112.67
5.3.140.0060.03512.66
5.3.130.0050.03912.66
5.3.120.0060.04412.66
5.3.110.0120.04812.66
5.3.100.0060.03612.12
5.3.90.0080.03512.08
5.3.80.0080.03512.07
5.3.70.0060.03612.08
5.3.60.0080.03412.07
5.3.50.0040.03912.00
5.3.40.0100.03712.00
5.3.30.0070.03511.94
5.3.20.0040.03711.72
5.3.10.0050.03611.69
5.3.00.0070.03511.68
5.2.170.0050.0379.18
5.2.160.0060.0399.18
5.2.150.0100.0379.18
5.2.140.0050.0439.17
5.2.130.0070.0389.14
5.2.120.0050.0419.14
5.2.110.0070.0379.14
5.2.100.0060.0359.14
5.2.90.0060.0379.14
5.2.80.0060.0339.13
5.2.70.0090.0329.13
5.2.60.0060.0389.09
5.2.50.0040.0349.05
5.2.40.0050.0329.03
5.2.30.0040.0319.00
5.2.20.0050.0288.99
5.2.10.0050.0288.91
5.2.00.0050.0288.78
5.1.60.0040.0248.06
5.1.50.0040.0268.05
5.1.40.0040.0248.04
5.1.30.0070.0238.39
5.1.20.0070.0248.41
5.1.10.0010.0298.13
5.1.00.0060.0248.14
5.0.50.0050.0196.62
5.0.40.0010.0226.48
5.0.30.0040.0306.29
5.0.20.0030.0196.26
5.0.10.0040.0196.24
5.0.00.0020.0326.23
4.4.90.0010.0174.78
4.4.80.0040.0144.75
4.4.70.0030.0154.76
4.4.60.0020.0164.75
4.4.50.0020.0174.77
4.4.40.0030.0284.71
4.4.30.0040.0164.75
4.4.20.0030.0184.85
4.4.10.0010.0174.84
4.4.00.0030.0324.76
4.3.110.0050.0234.67
4.3.100.0070.0204.66
4.3.90.0050.0214.63
4.3.80.0050.0324.58
4.3.70.0080.0184.63
4.3.60.0040.0234.63
4.3.50.0040.0214.63
4.3.40.0040.0264.54
4.3.30.0030.0153.29
4.3.20.0000.0203.26
4.3.10.0030.0153.21
4.3.00.0130.0237.44

preferences:
54.39 ms | 400 KiB | 5 Q