3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'key1\value1\key2\value2\key3\value3\key4\value4\key5\value5'; $result = []; foreach (array_chunk(explode('\\', $str), 2) as [$key, $val]) { $result[$key] = $val; } var_export($result);

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)
8.4.140.0130.00817.47
8.4.130.0100.00817.87
8.4.120.0080.01222.52
8.4.110.0040.00619.00
8.4.100.0050.00417.96
8.4.90.0100.01018.58
8.4.80.0130.00717.69
8.4.70.0100.00617.70
8.4.60.0130.00817.77
8.4.50.0160.00517.90
8.4.40.0090.01219.41
8.4.30.0170.00318.55
8.4.20.0140.00717.77
8.4.10.0060.00320.44
8.3.270.0150.00516.64
8.3.260.0140.00616.61
8.3.250.0070.00818.71
8.3.240.0130.00716.25
8.3.230.0150.00316.63
8.3.220.0120.00717.24
8.3.210.0080.00918.54
8.3.200.0130.00616.49
8.3.190.0130.00616.59
8.3.180.0110.00720.73
8.3.170.0090.00916.63
8.3.160.0090.00916.49
8.3.150.0070.00717.16
8.3.140.0090.00017.13
8.3.130.0000.01118.29
8.3.120.0060.00320.74
8.3.110.0090.00020.94
8.3.100.0060.00324.06
8.3.90.0050.00326.77
8.3.80.0050.00516.38
8.3.70.0090.00616.58
8.3.60.0150.00616.48
8.3.50.0090.00620.16
8.3.40.0120.00319.07
8.3.30.0160.00319.25
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0000.00826.16
8.2.290.0150.00320.36
8.2.280.0080.01018.23
8.2.270.0030.00616.41
8.2.260.0000.00718.91
8.2.250.0080.00018.23
8.2.240.0150.00717.47
8.2.230.0050.00322.58
8.2.220.0040.00437.54
8.2.210.0000.00826.77
8.2.200.0080.00018.54
8.2.190.0140.00716.63
8.2.180.0060.00925.92
8.2.170.0150.00018.83
8.2.160.0150.00622.96
8.2.150.0080.00025.66
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00021.03
8.2.110.0030.00620.91
8.2.100.0080.00317.78
8.2.90.0080.00018.16
8.2.80.0030.00520.58
8.2.70.0060.00317.93
8.2.60.0000.00917.63
8.2.50.0030.00517.74
8.2.40.0040.00417.62
8.2.30.0000.00718.00
8.2.20.0050.00220.38
8.2.10.0030.00618.04
8.2.00.0050.00319.23
8.1.330.0150.00422.08
8.1.320.0050.00416.21
8.1.310.0040.00416.80
8.1.300.0120.00320.20
8.1.290.0090.00018.88
8.1.280.0090.00925.92
8.1.270.0050.00223.99
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0000.00922.11
8.1.230.0070.00420.89
8.1.220.0040.00417.74
8.1.210.0060.00318.84
8.1.200.0040.00417.35
8.1.190.0040.00417.52
8.1.180.0040.00418.10
8.1.170.0040.00419.44
8.1.160.0060.00318.87
8.1.150.0000.00718.63
8.1.140.0110.00017.49
8.1.130.0030.00317.30
8.1.120.0050.00317.46
8.1.110.0060.00417.40
8.1.100.0050.00217.48
8.1.90.0080.00017.46
8.1.80.0040.00417.41
8.1.70.0070.00017.36
8.1.60.0000.00717.57
8.1.50.0030.00617.43
8.1.40.0000.00817.37
8.1.30.0200.00517.47
8.1.20.0210.00217.57
8.1.10.0170.00717.56
8.1.00.0210.00317.37
8.0.300.0040.00420.27
8.0.290.0040.00416.75
8.0.280.0000.00718.46
8.0.270.0030.00516.83
8.0.260.0060.00016.81
8.0.250.0030.00316.91
8.0.240.0000.00716.82
8.0.230.0030.00316.96
8.0.220.0040.00416.76
8.0.210.0040.00416.93
8.0.200.0080.00016.80
8.0.190.0080.00016.80
8.0.180.0000.00816.91
8.0.170.0050.00316.93
8.0.160.0160.00316.84
8.0.150.0090.00816.60
8.0.140.0000.00816.86
8.0.130.0070.00216.68
8.0.120.0150.00316.81
8.0.110.0120.00616.89
8.0.100.0160.00316.75
8.0.90.0110.00716.88
8.0.80.0140.00516.84
8.0.70.0170.00316.86
8.0.60.0130.00716.86
8.0.50.0130.00516.85
8.0.30.0120.00816.81
8.0.20.0140.00416.91
8.0.10.0120.00216.89
7.4.330.0060.00015.55
7.4.320.0030.00316.52
7.4.300.0000.00616.47
7.4.290.0030.00616.54
7.4.280.0040.01216.49
7.4.270.0180.00316.41
7.4.260.0180.00316.46
7.4.250.0150.00716.46
7.4.240.0170.00316.43
7.4.230.0140.00916.45
7.4.220.0180.00516.45
7.4.210.0060.01716.38
7.4.200.0160.00016.55
7.4.190.0130.00316.57
7.4.180.0130.00316.58
7.4.160.0090.00716.36
7.4.150.0180.00416.44
7.4.140.0170.00716.42
7.4.130.0050.00916.29
7.4.120.0150.00316.45
7.4.110.0200.00016.53
7.4.100.0160.00316.48
7.4.90.0180.00316.42
7.4.80.0240.00316.18
7.4.70.0180.00516.32
7.4.60.0150.00516.41
7.4.50.0220.00016.16
7.4.40.0190.00416.30
7.4.30.0200.00316.38
7.4.20.0130.00916.37
7.4.10.0110.00816.27
7.4.00.0140.00516.52

preferences:
106.79 ms | 403 KiB | 5 Q