3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('a', 'b', 'c', 'd', null); for($i = 0; $i < count($a); $i += 2) { echo $i . " "; if (array_key_exists($i + 1, $a)) { echo $a[$i + 1] . " "; } echo ($i + 1) . PHP_EOL; } $n = explode('|', $n); var_dump($n);

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)
8.3.40.0040.01118.79
8.3.30.0110.00718.59
8.3.20.0070.00020.21
8.3.10.0060.00323.50
8.3.00.0080.00019.68
8.2.170.0160.00022.96
8.2.160.0110.00319.23
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0000.00719.29
8.2.120.0040.00426.35
8.2.110.0060.00320.35
8.2.100.0050.00518.03
8.2.90.0040.00419.17
8.2.80.0000.00817.97
8.2.70.0030.00717.63
8.2.60.0050.00318.03
8.2.50.0080.00018.10
8.2.40.0040.00420.45
8.2.30.0040.00419.39
8.2.20.0040.00418.00
8.2.10.0050.00218.11
8.2.00.0060.00318.16
8.1.270.0000.00722.20
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00621.98
8.1.230.0070.00419.13
8.1.220.0050.00317.76
8.1.210.0050.00318.77
8.1.200.0060.00317.23
8.1.190.0040.00417.22
8.1.180.0090.00018.10
8.1.170.0050.00318.66
8.1.160.0040.00418.94
8.1.150.0030.00620.68
8.1.140.0070.00019.56
8.1.130.0000.00718.88
8.1.120.0000.00717.48
8.1.110.0030.00517.37
8.1.100.0000.00717.43
8.1.90.0000.00717.37
8.1.80.0050.00317.41
8.1.70.0000.00717.34
8.1.60.0000.00917.65
8.1.50.0000.00817.55
8.1.40.0060.00317.48
8.1.30.0040.00417.52
8.1.20.0050.00217.66
8.1.10.0040.00417.61
8.1.00.0040.00417.38
8.0.300.0030.00620.04
8.0.290.0040.00416.88
8.0.280.0040.00418.50
8.0.270.0000.00817.25
8.0.260.0030.00316.87
8.0.250.0000.00717.02
8.0.240.0090.00017.05
8.0.230.0000.00717.05
8.0.220.0070.00016.95
8.0.210.0000.00616.96
8.0.200.0050.00216.99
8.0.190.0070.00316.89
8.0.180.0070.00016.95
8.0.170.0040.00416.95
8.0.160.0000.00716.94
8.0.150.0050.00516.78
8.0.140.0000.00816.77
8.0.130.0050.00013.41
8.0.120.0050.00316.79
8.0.110.0000.00716.98
8.0.100.0040.00416.82
8.0.90.0040.00416.77
8.0.80.0100.01116.84
8.0.70.0080.00016.90
8.0.60.0000.00816.95
8.0.50.0080.00016.80
8.0.30.0050.01217.03
8.0.20.0130.01017.40
8.0.10.0040.00417.13
8.0.00.0110.00616.79
7.4.330.0060.00015.55
7.4.320.0030.00316.60
7.4.300.0040.00416.55
7.4.290.0000.00716.39
7.4.280.0000.00916.52
7.4.270.0000.00716.51
7.4.260.0000.00816.57
7.4.250.0080.00016.53
7.4.240.0040.00416.61
7.4.230.0070.00016.41
7.4.220.0090.00916.52
7.4.210.0030.01716.51
7.4.200.0000.00716.33
7.4.160.0050.01316.36
7.4.150.0130.00417.40
7.4.140.0100.01017.86
7.4.130.0030.01516.38
7.4.120.0120.01016.66
7.4.110.0130.00316.43
7.4.100.0220.00016.64
7.4.90.0070.01016.49
7.4.80.0060.01319.39
7.4.70.0060.00916.46
7.4.60.0070.01116.42
7.4.50.0000.01416.52
7.4.40.0080.00816.48
7.4.30.0090.00716.39
7.4.00.0030.01215.12
7.3.330.0020.00213.24
7.3.320.0030.00313.06
7.3.310.0000.00716.38
7.3.300.0040.00416.34
7.3.290.0070.00716.30
7.3.280.0080.00816.31
7.3.270.0110.00717.40
7.3.260.0070.01416.46
7.3.250.0110.00916.37
7.3.240.0090.00816.48
7.3.230.0090.00916.41
7.3.210.0130.00316.52
7.3.200.0130.01016.31
7.3.190.0120.00916.32
7.3.180.0120.00416.42
7.3.170.0080.00816.29
7.3.160.0060.01116.47
7.2.330.0030.01316.75
7.2.320.0140.00616.46
7.2.310.0140.00616.78
7.2.300.0120.00916.43
7.2.290.0090.00916.68
7.2.60.0090.00617.02
7.2.00.0070.00719.64
7.1.200.0090.00315.76
7.1.100.0060.00618.04
7.1.70.0000.01217.06
7.1.60.0230.00935.05
7.1.50.0230.00635.02
7.1.40.0220.00634.41
7.1.30.0180.01234.39
7.1.20.0220.00634.61
7.1.10.0030.01116.36
7.1.00.0060.00916.88
7.0.200.0080.00816.94
7.0.190.0080.00516.70
7.0.180.0030.01116.24
7.0.170.0130.00316.43
7.0.160.0030.01116.21
7.0.150.0080.00816.46
7.0.140.0050.00916.32
7.0.130.0070.00716.54
7.0.120.0060.00916.54
7.0.110.0110.01116.30
7.0.100.0130.00616.27
7.0.90.0100.00716.26
7.0.80.0030.01016.45
7.0.70.0120.00416.54
7.0.60.0060.00916.23
7.0.50.0070.00716.35
7.0.40.0060.01216.75
7.0.30.0060.00916.66
7.0.20.0090.00616.34
7.0.10.0120.00316.36
7.0.00.0030.01016.40

preferences:
47.17 ms | 400 KiB | 5 Q