3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = Array ( 'name' => 'richard', 'email' => 'richard@gmail.com', 'address' => Array ( 'city' => 'paris', 'zip' => 12121 ), 'address1' => Array ( 'city' => 'paris', 'zip' => 12121 ), 'address3' => Array ( 'city' => 'paris', 'zip' => 12121 ) ); function list_keys($array) { $output = array(); foreach ($array as $k => $v) { if (is_array($v)) { foreach (list_keys($v) as $path) { $output[] = "$k.$path"; } } else { $output[] = $k; } } return $output; } print_r(list_keys($array));

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)
8.3.60.0140.00718.68
8.3.50.0100.00316.52
8.3.40.0150.00318.75
8.3.30.0050.01018.62
8.3.20.0050.00321.73
8.3.10.0040.00420.41
8.3.00.0040.00417.50
8.2.180.0110.00816.63
8.2.170.0120.00322.96
8.2.160.0060.00820.52
8.2.150.0030.00524.18
8.2.140.0000.00824.66
8.2.130.0050.00318.22
8.2.120.0180.00026.35
8.2.110.0150.00621.02
8.2.100.0080.00417.97
8.2.90.0050.00220.59
8.2.80.0000.00917.97
8.2.70.0000.00918.04
8.2.60.0000.00818.34
8.2.50.0000.00818.10
8.2.40.0110.00019.50
8.2.30.0050.00319.31
8.2.20.0040.00418.00
8.2.10.0050.00219.51
8.2.00.0000.00718.00
8.1.280.0000.01625.92
8.1.270.0070.00023.99
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0000.00923.97
8.1.230.0060.00620.62
8.1.220.0000.00817.77
8.1.210.0000.00820.61
8.1.200.0080.00017.23
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0030.00518.64
8.1.160.0040.00418.96
8.1.150.0070.00018.91
8.1.140.0040.00418.94
8.1.130.0030.00321.92
8.1.120.0030.00317.38
8.1.110.0050.00317.36
8.1.100.0040.00417.50
8.1.90.0000.00817.48
8.1.80.0000.00717.53
8.1.70.0000.00717.38
8.1.60.0000.00817.51
8.1.50.0000.00817.52
8.1.40.0090.00017.45
8.1.30.0040.00417.64
8.1.20.0050.00317.66
8.1.10.0000.00717.56
8.1.00.0040.00417.42
8.0.300.0040.00420.02
8.0.290.0050.00216.63
8.0.280.0070.00018.33
8.0.270.0000.00717.14
8.0.260.0030.00318.36
8.0.250.0030.00316.84
8.0.240.0050.00316.98
8.0.230.0070.00016.92
8.0.220.0030.00316.95
8.0.210.0070.00016.86
8.0.200.0040.00416.92
8.0.190.0000.00816.88
8.0.180.0000.00816.91
8.0.170.0110.00016.80
8.0.160.0030.00516.76
8.0.150.0040.00416.79
8.0.140.0000.00716.86
8.0.130.0000.00813.32
8.0.120.0050.00316.77
8.0.110.0000.00816.82
8.0.100.0070.00016.84
8.0.90.0040.00416.94
8.0.80.0140.00816.86
8.0.70.0040.00416.87
8.0.60.0040.00416.94
8.0.50.0070.00016.79
8.0.30.0120.00517.07
8.0.20.0040.01417.03
8.0.10.0040.00416.89
8.0.00.0120.00816.68
7.4.330.0000.00515.55
7.4.320.0050.00216.47
7.4.300.0030.00316.37
7.4.290.0030.00516.41
7.4.280.0070.00016.60
7.4.270.0000.00716.37
7.4.260.0000.00716.49
7.4.250.0030.00616.49
7.4.240.0000.00716.37
7.4.230.0030.00316.39
7.4.220.0040.00416.35
7.4.210.0040.01016.61
7.4.200.0050.00316.49
7.4.160.0110.00816.50
7.4.140.0110.00817.86
7.4.130.0080.01116.59
7.4.120.0040.01916.38
7.4.110.0070.01116.71
7.4.100.0110.01116.63
7.4.90.0000.01716.67
7.4.80.0100.01019.39
7.4.70.0090.01216.59
7.4.60.0070.01016.59
7.4.50.0090.00916.50
7.4.40.0100.00616.37
7.4.10.0120.00614.89
7.4.00.0070.01014.90
7.3.330.0020.00213.47
7.3.320.0060.00013.20
7.3.310.0040.00416.39
7.3.300.0040.00416.31
7.3.290.0040.00216.32
7.3.280.0060.01016.35
7.3.260.0090.01216.49
7.3.230.0090.00616.63
7.3.210.0170.00316.68
7.3.200.0030.01416.53
7.3.190.0130.00916.39
7.3.180.0080.00816.43
7.3.170.0070.01516.41
7.3.160.0060.01616.34
7.3.130.0100.00714.74
7.3.120.0110.00614.82
7.3.110.0100.01014.94
7.3.100.0020.01414.80
7.3.90.0040.00815.01
7.3.80.0050.00715.18
7.3.70.0020.01214.67
7.3.60.0020.01214.83
7.3.50.0050.01014.78
7.3.40.0110.00314.85
7.3.30.0060.00814.84
7.3.20.0190.00915.84
7.3.10.0270.01015.84
7.3.00.0190.00815.86
7.2.330.0070.01316.76
7.2.320.0030.01316.71
7.2.310.0060.01016.45
7.2.300.0110.00616.27
7.2.290.0140.00316.79
7.2.260.0030.01315.21
7.2.250.0110.00815.10
7.2.240.0110.00614.98
7.2.230.0050.01015.03
7.2.220.0060.00714.91
7.2.210.0080.00715.15
7.2.200.0090.00515.15
7.2.190.0060.00915.09
7.2.180.0070.00515.01
7.2.170.0060.01015.09
7.2.160.0060.01015.08
7.2.150.0270.00916.14
7.2.140.0240.00815.90
7.2.130.0290.00916.04
7.2.120.0230.00515.94
7.2.110.0210.01015.83
7.2.100.0270.01115.74
7.2.90.0180.00915.93
7.2.80.0270.00816.06
7.2.70.0290.00815.99
7.2.60.0300.00815.88
7.2.50.0250.00815.96
7.2.40.0250.00915.92
7.2.30.0260.00715.98
7.2.20.0260.00915.99
7.2.10.0740.00715.89
7.2.00.0290.00515.99
7.1.330.0050.00915.70
7.1.320.0070.00715.80
7.1.310.0050.00715.75
7.1.300.0050.00715.66
7.1.290.0080.00515.66
7.1.280.0040.01015.80
7.1.270.0030.00815.66
7.1.260.0050.00915.95
7.1.250.0250.00814.85
7.1.240.0070.00716.00
7.1.230.0000.00915.66
7.1.220.0070.00715.91
7.1.210.0110.00415.78
7.1.200.0110.00015.97
7.1.190.0060.00615.80
7.1.180.0070.00415.83
7.1.170.0030.00615.86
7.1.160.0120.00315.80
7.1.150.0000.01715.82
7.1.140.0090.00315.49
7.1.130.0040.00715.72
7.1.120.0030.01215.89
7.1.110.0040.01115.75
7.1.100.0070.00715.93
7.1.90.0000.01315.99
7.1.80.0080.00415.80
7.1.70.0040.01115.57
7.1.60.0000.01515.72
7.1.50.0070.00415.91
7.1.40.0040.00715.79
7.1.30.0030.01015.84
7.1.20.0090.00615.62
7.1.10.0060.00715.98
7.1.00.0090.00315.99

preferences:
62.41 ms | 401 KiB | 5 Q