3v4l.org

run code in 300+ PHP versions simultaneously
<?php function array_keys_recursive(array $array) : array { foreach ($array as $key => $value) { if (is_array($value)) { $index[$key] = array_keys_recursive($value); } else { $index []= $key; } } return $index ?? []; } $a = ['a'=>11, 'b'=>2,'c'=>['r'=>5,'s'=>8]]; $b = ['a'=>1, 'b'=>2, 'c'=>['r'=>15,'s'=>18]]; var_dump(array_keys_recursive($a) === array_keys_recursive($b)); $a = ['a'=>11, 'b'=>2,'c'=>['r'=>5,'s'=>8]]; $b = ['a'=>1, 'c'=>2, 'b'=>['r'=>15,'s'=>18]]; var_dump(array_keys_recursive($a) === array_keys_recursive($b)); $a = ['a'=>11, 'b'=>2,'c'=>['r'=>5,'s'=>8]]; $b = ['a'=>1, 'b'=>2, 'c'=>['r1'=>15,'m'=>18]]; var_dump(array_keys_recursive($a) === array_keys_recursive($b));

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)
8.5.00.0130.00820.04
8.4.150.0000.00214.05
8.4.140.0140.00717.39
8.4.130.0100.01117.84
8.4.120.0100.01020.45
8.4.110.0120.00920.55
8.4.100.0130.00817.80
8.4.90.0100.01117.81
8.4.80.0040.00417.57
8.4.70.0040.00517.93
8.4.60.0130.00718.96
8.4.50.0050.00617.70
8.4.40.0070.00319.43
8.4.30.0060.01321.95
8.4.20.0070.01018.57
8.4.10.0150.00619.18
8.3.280.0160.00718.74
8.3.270.0090.01016.74
8.3.260.0110.00616.85
8.3.250.0050.00418.95
8.3.240.0080.00616.68
8.3.230.0060.00316.84
8.3.220.0110.00918.48
8.3.210.0100.00816.70
8.3.200.0030.00616.50
8.3.190.0110.00717.10
8.3.180.0090.01116.64
8.3.170.0090.00917.02
8.3.160.0040.01518.71
8.3.150.0130.00620.73
8.3.140.0040.00416.71
8.3.130.0090.00618.30
8.3.120.0030.00620.89
8.3.110.0040.00420.94
8.3.100.0060.00318.66
8.3.90.0080.00026.77
8.3.80.0060.00316.88
8.3.70.0060.00916.50
8.3.60.0070.01418.68
8.3.50.0090.00718.00
8.3.40.0090.00618.75
8.3.30.0120.00318.75
8.3.20.0000.00920.76
8.3.10.0000.00820.53
8.3.00.0040.00420.77
8.2.290.0060.00218.76
8.2.280.0130.00718.65
8.2.270.0100.01018.80
8.2.260.0050.00320.00
8.2.250.0000.00817.04
8.2.240.0100.01017.09
8.2.230.0030.00622.58
8.2.220.0040.00424.06
8.2.210.0050.00326.77
8.2.200.0050.00518.41
8.2.190.0090.00916.63
8.2.180.0120.00318.41
8.2.170.0070.00722.96
8.2.160.0140.00720.82
8.2.150.0060.00324.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00420.37
8.2.110.0050.00520.47
8.2.100.0040.00717.84
8.2.90.0000.00820.07
8.2.80.0040.00418.04
8.2.70.0050.00317.63
8.2.60.0040.00417.50
8.2.50.0050.00318.10
8.2.40.0000.00919.42
8.2.30.0000.00718.06
8.2.20.0070.00018.03
8.2.10.0000.00919.43
8.2.00.0050.00218.20
8.1.330.0130.00516.00
8.1.320.0040.00516.26
8.1.310.0060.01217.11
8.1.300.0080.00018.34
8.1.290.0030.00630.84
8.1.280.0140.00725.92
8.1.270.0090.00020.48
8.1.260.0050.00326.35
8.1.250.0000.00828.09
8.1.240.0040.00420.89
8.1.230.0040.00722.66
8.1.220.0040.00417.79
8.1.210.0030.00518.77
8.1.200.0040.00417.35
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0050.00318.51
8.1.160.0030.00618.98
8.1.150.0030.00518.98
8.1.140.0070.00020.30
8.1.130.0000.00817.38
8.1.120.0040.00417.48
8.1.110.0070.00017.50
8.1.100.0040.00417.50
8.1.90.0030.00317.37
8.1.80.0040.00417.55
8.1.70.0030.00617.50
8.1.60.0040.00417.49
8.1.50.0030.00617.50
8.1.40.0060.00317.55
8.1.30.0040.00417.64
8.1.20.0040.00417.55
8.1.10.0040.00417.49
8.1.00.0000.00817.58
8.0.300.0030.00320.16
8.0.290.0040.00416.75
8.0.280.0080.00018.43
8.0.270.0030.00317.19
8.0.260.0000.00816.84
8.0.250.0030.00316.91
8.0.240.0030.00316.99
8.0.230.0030.00316.95
8.0.220.0070.00016.83
8.0.210.0050.00316.91
8.0.200.0030.00317.02
8.0.190.0030.00616.95
8.0.180.0050.00316.91
8.0.170.0050.00316.84
8.0.160.0020.00516.88
8.0.150.0040.00416.87
8.0.140.0000.00816.84
8.0.130.0040.00413.32
8.0.120.0080.00016.87
8.0.110.0070.00016.88
8.0.100.0000.00716.98
8.0.90.0080.00017.02
8.0.80.0060.01216.82
8.0.70.0040.00416.90
8.0.60.0030.00516.71
8.0.50.0040.00416.77
8.0.30.0140.00817.21
8.0.20.0100.01317.40
8.0.10.0050.00316.87
8.0.00.0130.00516.88
7.4.330.0000.00615.55
7.4.320.0030.00316.67
7.4.300.0030.00316.42
7.4.290.0070.00016.54
7.4.280.0000.00716.61
7.4.270.0040.00416.63
7.4.260.0000.00816.66
7.4.250.0040.00216.59
7.4.240.0000.00716.54
7.4.230.0030.00316.42
7.4.220.0060.00316.71
7.4.210.0050.01116.61
7.4.200.0000.00816.74
7.4.160.0050.01016.49
7.4.140.0100.01017.86
7.4.130.0090.00916.41
7.4.120.0130.00516.50
7.4.110.0090.01616.53
7.4.100.0150.00316.60
7.4.90.0180.00316.44
7.4.80.0070.01019.39
7.4.70.0100.00716.56
7.4.60.0000.01616.34
7.4.50.0120.00316.20
7.4.40.0110.00716.65
7.4.00.0050.00914.87
7.3.330.0070.00013.37
7.3.320.0060.00013.40
7.3.310.0000.00716.29
7.3.300.0000.00716.34
7.3.290.0000.00716.35
7.3.280.0040.01116.39
7.3.260.0150.00716.47
7.3.240.0070.01016.46
7.3.230.0120.00616.64
7.3.210.0090.00916.64
7.3.200.0080.00816.53
7.3.190.0120.00816.40
7.3.180.0030.01316.46
7.3.170.0130.01016.61
7.3.160.0120.00416.38
7.3.120.0070.01114.90
7.3.110.0030.01314.95
7.3.100.0080.00814.84
7.3.90.0010.01014.82
7.3.80.0070.00914.98
7.3.70.0050.01014.98
7.3.60.0050.00614.73
7.3.50.0090.00514.71
7.3.40.0060.00414.84
7.3.30.0030.00914.79
7.3.20.2980.00615.71
7.3.10.2250.00715.96
7.3.00.1980.00816.06
7.2.330.0090.00916.62
7.2.320.0090.01416.53
7.2.310.0110.00616.94
7.2.300.0070.01016.89
7.2.290.0060.00916.76
7.2.250.0120.00414.98
7.2.240.0070.01015.06
7.2.230.0060.00915.04
7.2.220.0110.00615.04
7.2.210.0000.01514.86
7.2.200.0000.01315.12
7.2.190.0050.01015.05
7.2.180.0070.00314.97
7.2.170.0080.00715.05
7.2.160.0070.00314.93
7.2.150.3430.00815.90
7.2.140.3530.00915.68
7.2.130.3390.00615.96
7.2.120.3450.00915.77
7.2.110.2840.01115.70
7.2.100.3190.00515.74
7.2.90.3140.01115.89
7.2.80.4000.01615.89
7.2.70.4410.00915.96
7.2.60.5120.01215.66
7.2.50.3740.00915.84
7.2.40.3620.01415.88
7.2.30.4590.00915.77
7.2.20.3460.01515.66
7.2.10.4810.00615.71
7.2.00.3420.01215.80
7.1.330.0050.00915.59
7.1.320.0060.00415.62
7.1.310.0030.01115.66
7.1.300.0060.00615.60
7.1.290.0080.00515.70
7.1.280.0090.00515.71
7.1.270.0050.00815.51
7.1.260.0040.00515.69
7.1.250.2740.00614.74

preferences:
29.51 ms | 403 KiB | 5 Q