3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['a' => 1, 'b' => 2]; $b = "&"; $b .= array_walk($a, function($v, $k) { return ( '&'.$k.'='.'$v'); }); print_r($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)
8.3.60.0140.00718.56
8.3.50.0060.01321.92
8.3.40.0110.00618.67
8.3.30.0070.00718.64
8.3.20.0040.00420.39
8.3.10.0050.00320.41
8.3.00.0030.00520.51
8.2.180.0060.00918.04
8.2.170.0040.01122.96
8.2.160.0070.00720.39
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0080.00019.48
8.2.120.0070.00026.35
8.2.110.0090.00022.11
8.2.100.0060.00618.05
8.2.90.0040.00419.34
8.2.80.0000.00817.97
8.2.70.0030.00617.59
8.2.60.0040.00417.93
8.2.50.0040.00418.09
8.2.40.0000.00720.61
8.2.30.0000.00719.48
8.2.20.0040.00417.84
8.2.10.0000.00818.02
8.2.00.0000.00718.09
8.1.280.0090.00625.92
8.1.270.0030.01223.89
8.1.260.0080.00028.09
8.1.250.0080.00028.09
8.1.240.0030.00622.47
8.1.230.0060.00617.64
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0070.00317.36
8.1.190.0000.00817.23
8.1.180.0030.00518.10
8.1.170.0050.00318.42
8.1.160.0000.00820.80
8.1.150.0060.00318.83
8.1.140.0050.00219.57
8.1.130.0030.00317.61
8.1.120.0000.00717.36
8.1.110.0000.00717.49
8.1.100.0000.00817.46
8.1.90.0050.00217.41
8.1.80.0000.00817.35
8.1.70.0000.00717.34
8.1.60.0040.00417.51
8.1.50.0040.00417.55
8.1.40.0030.00517.55
8.1.30.0000.00817.57
8.1.20.0040.00417.65
8.1.10.0050.00217.49
8.1.00.0000.00717.49
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0040.00418.32
8.0.270.0020.00517.16
8.0.260.0000.00617.21
8.0.250.0070.00016.91
8.0.240.0060.00016.91
8.0.230.0030.00316.81
8.0.220.0000.00716.88
8.0.210.0040.00416.88
8.0.200.0000.00616.93
8.0.190.0040.00416.83
8.0.180.0030.00616.74
8.0.170.0050.00216.80
8.0.160.0070.00016.82
8.0.150.0000.00716.90
8.0.140.0040.00416.68
8.0.130.0000.00613.34
8.0.120.0000.00816.73
8.0.110.0040.00416.86
8.0.100.0050.00316.85
8.0.90.0020.00516.72
8.0.80.0060.00916.88
8.0.70.0080.00016.88
8.0.60.0050.00316.85
8.0.50.0040.00416.95
8.0.30.0120.00516.83
8.0.20.0090.01117.40
8.0.10.0040.00416.78
8.0.00.0090.00916.71
7.4.330.0030.00316.76
7.4.320.0000.00616.52
7.4.300.0000.00616.49
7.4.290.0030.00316.51
7.4.280.0040.00416.39
7.4.270.0070.00016.40
7.4.260.0070.00016.38
7.4.250.0000.00716.57
7.4.240.0040.00416.52
7.4.230.0000.00716.60
7.4.220.0110.01816.68
7.4.210.0070.01116.58
7.4.200.0030.00316.43
7.4.160.0030.01216.37
7.4.150.0180.01217.40
7.4.140.0100.00817.86
7.4.130.0160.00516.33
7.4.120.0120.00516.46
7.4.110.0070.01016.39
7.4.100.0090.00916.57
7.4.90.0100.00616.22
7.4.80.0150.00319.39
7.4.70.0070.00716.53
7.4.60.0100.00616.48
7.4.50.0120.00616.55
7.4.40.0060.00916.19
7.4.30.0070.01416.51
7.4.00.0030.01314.64
7.3.330.0060.00013.21
7.3.320.0060.00013.32
7.3.310.0070.00016.14
7.3.300.0000.00716.16
7.3.290.0050.00216.26
7.3.280.0080.00916.29
7.3.270.0090.00917.40
7.3.260.0120.00616.37
7.3.250.0110.00816.41
7.3.240.0060.01116.42
7.3.230.0130.00316.39
7.3.210.0140.00316.59
7.3.200.0000.02119.39
7.3.190.0030.01316.34
7.3.180.0040.01216.28
7.3.170.0090.01216.46
7.3.160.0000.01516.44
7.3.120.0070.00714.88
7.3.110.0070.01014.76
7.3.100.0000.01014.64
7.3.90.0040.00814.82
7.3.80.0080.00714.77
7.3.70.0030.01314.64
7.3.60.0000.00914.68
7.3.50.0030.01314.39
7.3.40.0000.01414.70
7.3.30.0030.00914.67
7.3.20.0030.01016.65
7.3.10.0030.01516.57
7.3.00.0030.01016.64
7.2.330.0160.00016.41
7.2.320.0110.00716.65
7.2.310.0120.00616.43
7.2.300.0130.01016.65
7.2.290.0030.01216.55
7.2.240.0030.01314.93
7.2.230.0060.00814.94
7.2.220.0070.00714.78
7.2.210.0080.00814.95
7.2.200.0030.00715.11
7.2.190.0040.01214.64
7.2.180.0040.01115.13
7.2.170.0060.01014.80
7.2.160.0070.00714.99
7.2.150.0000.01416.61
7.2.140.0030.00617.01
7.2.130.0110.00016.85
7.2.120.0040.01116.90
7.2.110.0060.00616.84
7.2.100.0150.00316.69
7.2.90.0070.01016.69
7.2.80.0060.01016.67
7.2.70.0110.00416.90
7.2.60.0050.00816.82
7.2.50.0100.00616.90
7.2.40.0100.00716.76
7.2.30.0090.00616.89
7.2.20.0040.00816.86
7.2.10.0080.00816.81
7.2.00.0060.00916.84
7.1.330.0050.00515.77
7.1.320.0040.01115.71
7.1.310.0000.01315.86
7.1.300.0040.00715.60
7.1.290.0030.00615.93
7.1.280.0000.01615.50
7.1.270.0090.00615.90
7.1.260.0060.00915.81
7.1.250.0080.00815.51
7.1.200.0040.00715.77
7.1.70.0050.00317.14
7.1.60.0210.00319.19
7.1.00.0030.07722.30
7.0.200.0810.00414.61
7.0.60.0030.07721.73
7.0.50.0070.08717.84
7.0.40.0070.09020.09
7.0.30.0300.07020.13
7.0.20.0300.07720.09
7.0.10.0030.04320.30
7.0.00.0130.06720.07
5.6.210.0030.04020.50
5.6.200.0100.03318.18
5.6.190.0100.05720.39
5.6.180.0170.08320.55
5.6.170.0200.08720.57
5.6.160.0100.05720.57
5.6.150.0070.04018.19
5.6.140.0130.06018.29
5.6.130.0070.08318.23
5.6.120.0100.08021.10
5.6.110.0100.08720.98
5.6.100.0200.06320.89
5.6.90.0130.07721.05
5.6.80.0200.06320.54
5.5.350.0130.08020.41
5.5.340.0070.04017.98
5.5.330.0130.04020.25
5.5.320.0200.05720.36
5.5.310.0170.08320.28
5.5.300.0130.06717.95
5.5.290.0100.07718.07
5.5.280.0200.07320.87
5.5.270.0070.07320.84
5.5.260.0170.07320.79
5.5.250.0100.03720.61
5.5.240.0200.07320.26

preferences:
32.28 ms | 401 KiB | 5 Q