3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "1234567890a"; var_dump($a["010"], isset($a["010"])); // true $x = strtolower("010"); var_dump($a[$x], isset($a[$x]));

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)
8.3.60.0070.01118.18
8.3.50.0070.01016.33
8.3.40.0110.00418.68
8.3.30.0090.00618.60
8.3.20.0040.00420.20
8.3.10.0040.00421.60
8.3.00.0080.00020.90
8.2.180.0120.00918.29
8.2.170.0100.00322.96
8.2.160.0110.00422.21
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0050.00322.26
8.2.120.0070.00026.35
8.2.110.0060.00320.47
8.2.100.0040.00817.91
8.2.90.0000.00819.04
8.2.80.0030.00517.97
8.2.70.0040.00417.50
8.2.60.0050.00317.68
8.2.50.0000.00918.10
8.2.40.0080.00020.45
8.2.30.0030.00621.12
8.2.20.0050.00217.95
8.2.10.0030.00518.07
8.2.00.0030.00318.03
8.1.280.0090.00625.92
8.1.270.0070.00022.11
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0100.00022.49
8.1.230.0060.00619.09
8.1.220.0050.00317.77
8.1.210.0080.00018.77
8.1.200.0080.00017.23
8.1.190.0080.00017.10
8.1.180.0040.00418.10
8.1.170.0000.00818.39
8.1.160.0070.00018.97
8.1.150.0030.00518.70
8.1.140.0040.00419.53
8.1.130.0070.00018.73
8.1.120.0030.00717.39
8.1.110.0080.00017.35
8.1.100.0000.00717.41
8.1.90.0000.00717.45
8.1.80.0000.00817.30
8.1.70.0030.00317.38
8.1.60.0060.00317.52
8.1.50.0080.00017.46
8.1.40.0030.00617.47
8.1.30.0000.00817.55
8.1.20.0060.00317.63
8.1.10.0040.00417.54
8.1.00.0050.00217.40
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0000.00718.29
8.0.270.0030.00317.10
8.0.260.0060.00018.48
8.0.250.0060.00016.85
8.0.240.0000.00716.68
8.0.230.0000.00816.88
8.0.220.0040.00416.86
8.0.210.0040.00316.80
8.0.200.0060.00016.89
8.0.190.0000.00916.78
8.0.180.0000.01016.73
8.0.170.0030.00516.88
8.0.160.0040.00816.87
8.0.150.0000.00716.76
8.0.140.0000.00716.72
8.0.130.0030.00413.24
8.0.120.0020.00516.66
8.0.110.0000.00716.76
8.0.100.0040.00416.91
8.0.90.0000.00816.72
8.0.80.0130.00316.75
8.0.70.0040.00416.79
8.0.60.0050.00216.72
8.0.50.0040.00416.70
8.0.30.0110.01016.86
8.0.20.0120.00717.40
8.0.10.0040.00416.84
8.0.00.0160.00916.92
7.4.330.0020.00215.55
7.4.320.0000.00616.57
7.4.300.0060.00016.48
7.4.290.0040.00416.42
7.4.280.0000.00816.38
7.4.270.0060.00316.51
7.4.260.0000.00616.42
7.4.250.0000.00716.41
7.4.240.0030.00516.44
7.4.230.0000.00716.62
7.4.220.0240.00316.61
7.4.210.0100.00616.50
7.4.200.0000.00716.63
7.4.160.0110.00416.47
7.4.150.0120.00917.40
7.4.140.0110.00717.86
7.4.130.0180.00316.43
7.4.120.0090.00916.35
7.4.110.0060.01616.42
7.4.100.0080.00816.44
7.4.90.0040.01416.38
7.4.80.0070.01019.39
7.4.70.0040.01216.55
7.4.60.0030.01316.32
7.4.50.0070.00316.33
7.4.40.0060.00916.47
7.4.30.0080.00816.52
7.4.00.0060.00914.65
7.3.330.0030.00313.31
7.3.320.0000.00513.26
7.3.310.0060.00016.41
7.3.300.0070.00016.34
7.3.290.0050.01116.32
7.3.280.0070.00916.25
7.3.270.0100.00717.40
7.3.260.0090.01016.47
7.3.250.0130.00716.23
7.3.240.0110.00816.34
7.3.230.0100.00716.59
7.3.210.0040.01416.65
7.3.200.0070.01016.18
7.3.190.0060.00916.21
7.3.180.0030.01316.54
7.3.170.0000.01516.21
7.3.160.0060.00916.26
7.2.330.0140.00316.75
7.2.320.0100.01416.45
7.2.310.0030.01516.85
7.2.300.0090.01316.54
7.2.290.0030.01316.36
7.2.60.0000.01316.64
7.2.00.0040.00819.33
7.1.200.0070.00715.82
7.1.100.0000.01018.33
7.1.70.0040.01117.25
7.1.60.0600.01033.39
7.1.50.0530.01332.96
7.1.40.0600.01032.61
7.1.30.0600.00732.69
7.1.20.0500.00732.86
7.1.10.0700.01314.70
7.1.00.0500.01014.81
7.0.200.0430.01314.97
7.0.190.0670.01014.96
7.0.180.0400.00714.48
7.0.170.0570.01314.54
7.0.160.0330.01014.31
7.0.150.0330.00714.42
7.0.140.0370.01014.41
7.0.130.0370.01014.35
7.0.120.0500.00714.80
7.0.110.0370.01014.48
7.0.100.0470.00714.32
7.0.90.0370.00714.36
7.0.80.0330.01014.40
7.0.70.0370.01014.32
7.0.60.0530.00714.29
7.0.50.0400.00714.59
7.0.40.0530.01714.73
7.0.30.0600.00714.77
7.0.20.0370.01714.59
7.0.10.0300.01314.66
7.0.00.0300.00714.43

preferences:
50.3 ms | 400 KiB | 5 Q