3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array[0]['d'] = 'd1'; $array[0]['a'] = 'a1'; $array[1]['d'] = 'd2'; $array[1]['a'] = 'a2'; $array[2]['d'] = 'd3'; $array[2]['a'] = 'a3'; $array[3]['d'] = 'd1'; $array[3]['a'] = 'a1'; $keys = array_keys($array,"a"); print_r($keys); ?>

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)
8.3.60.0120.00916.50
8.3.50.0100.00316.40
8.3.40.0070.01118.89
8.3.30.0000.01518.66
8.3.20.0070.00020.31
8.3.10.0040.00421.82
8.3.00.0050.00319.46
8.2.180.0100.00318.16
8.2.170.0090.00622.96
8.2.160.0100.00320.39
8.2.150.0050.00324.18
8.2.140.0030.00624.66
8.2.130.0020.00520.57
8.2.120.0040.00426.35
8.2.110.0090.00020.93
8.2.100.0110.00017.91
8.2.90.0050.00319.16
8.2.80.0040.00417.97
8.2.70.0000.00817.50
8.2.60.0050.00317.93
8.2.50.0030.00618.10
8.2.40.0000.00720.38
8.2.30.0000.00721.04
8.2.20.0050.00318.06
8.2.10.0040.00418.06
8.2.00.0040.00418.06
8.1.280.0070.00725.92
8.1.270.0090.00022.10
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0090.00021.26
8.1.230.0040.00817.52
8.1.220.0050.00317.77
8.1.210.0000.00918.77
8.1.200.0030.00617.35
8.1.190.0040.00417.23
8.1.180.0060.00318.10
8.1.170.0060.00318.59
8.1.160.0000.00818.99
8.1.150.0050.00220.60
8.1.140.0040.00719.43
8.1.130.0030.00318.83
8.1.120.0040.00417.41
8.1.110.0000.00817.39
8.1.100.0000.00817.36
8.1.90.0050.00217.33
8.1.80.0000.00717.36
8.1.70.0000.00717.43
8.1.60.0040.00417.54
8.1.50.0040.00417.47
8.1.40.0000.00817.45
8.1.30.0030.00917.66
8.1.20.0000.00817.56
8.1.10.0000.00717.54
8.1.00.0040.00417.44
8.0.300.0040.00418.77
8.0.290.0070.00016.75
8.0.280.0040.00418.32
8.0.270.0030.00317.21
8.0.260.0070.00016.75
8.0.250.0030.00316.92
8.0.240.0030.00316.88
8.0.230.0040.00416.86
8.0.220.0000.00716.71
8.0.210.0050.00316.69
8.0.200.0070.00016.86
8.0.190.0080.00016.89
8.0.180.0000.00716.91
8.0.170.0040.00416.80
8.0.160.0080.00016.83
8.0.150.0000.00716.67
8.0.140.0000.00716.77
8.0.130.0030.00313.21
8.0.120.0080.00016.79
8.0.110.0070.00016.93
8.0.100.0050.00316.82
8.0.90.0040.00416.73
8.0.80.0000.01816.82
8.0.70.0070.00016.86
8.0.60.0040.00416.72
8.0.50.0000.00716.71
8.0.30.0100.00816.85
8.0.20.0100.00817.40
8.0.10.0050.00316.81
8.0.00.0090.00916.57
7.4.330.0050.00015.55
7.4.320.0060.00016.56
7.4.300.0000.00716.44
7.4.290.0000.00716.43
7.4.280.0070.00016.43
7.4.270.0050.00216.35
7.4.260.0050.00013.13
7.4.250.0000.00816.52
7.4.240.0040.00416.45
7.4.230.0070.00016.41
7.4.220.0100.01016.55
7.4.210.0070.01016.46
7.4.200.0000.00716.33
7.4.160.0100.00716.22
7.4.150.0060.01317.40
7.4.140.0100.00817.86
7.4.130.0080.01616.41
7.4.120.0120.00816.43
7.4.110.0040.01416.53
7.4.100.0190.00616.44
7.4.90.0060.01016.45
7.4.80.0100.00719.39
7.4.70.0080.00816.48
7.4.60.0080.00816.27
7.4.50.0060.01016.69
7.4.40.0060.01016.34
7.4.30.0130.00516.42
7.4.00.0100.00315.05
7.3.330.0050.00012.95
7.3.320.0000.00513.05
7.3.310.0040.00416.28
7.3.300.0030.00316.10
7.3.290.0000.00716.27
7.3.280.0080.00916.21
7.3.270.0090.00917.40
7.3.260.0040.01216.40
7.3.250.0100.00816.22
7.3.240.0050.01216.21
7.3.230.0110.01116.36
7.3.210.0100.00716.53
7.3.200.0030.01416.14
7.3.190.0140.00316.17
7.3.180.0070.01516.38
7.3.170.0120.00816.15
7.3.160.0070.01616.25
7.3.10.0090.00916.23
7.3.00.0120.01216.11
7.2.330.0100.00716.64
7.2.320.0030.01416.55
7.2.310.0000.01616.78
7.2.300.0100.01316.45
7.2.290.0030.01316.61
7.2.130.0160.00616.54
7.2.120.0110.00816.77
7.2.110.0110.00416.60
7.2.100.0090.00915.99
7.2.90.0040.00816.31
7.2.80.0090.00916.80
7.2.70.0150.00316.37
7.2.60.0070.00916.50
7.2.50.0160.01416.88
7.2.40.0120.00416.94
7.2.30.0070.01316.23
7.2.20.0060.00916.15
7.2.10.0070.00916.47
7.2.00.0050.01017.99
7.1.250.0150.00615.47
7.1.200.0080.00615.65
7.1.100.0040.00718.28
7.1.70.0000.01317.09
7.1.60.0230.01134.99
7.1.50.0160.01634.50
7.1.40.0230.01034.36
7.1.30.0200.01334.30
7.1.20.0280.00334.40
7.1.10.0070.00716.45
7.1.00.0080.00616.64
7.0.200.0060.00916.69
7.0.190.0030.01216.81
7.0.180.0070.01016.20
7.0.170.0080.00916.36
7.0.160.0040.01116.20
7.0.150.0070.00916.26
7.0.140.0050.00916.18
7.0.130.0040.01116.33
7.0.120.0030.01016.43
7.0.110.0030.01416.49
7.0.100.0070.01016.48
7.0.90.0020.01416.43
7.0.80.0060.00716.39
7.0.70.0080.01016.27
7.0.60.0030.01416.17
7.0.50.0090.00616.28
7.0.40.0100.00716.36
7.0.30.0040.01216.52
7.0.20.0090.00616.27
7.0.10.0090.00616.44
7.0.00.0040.01216.36

preferences:
46.03 ms | 400 KiB | 5 Q