3v4l.org

run code in 300+ PHP versions simultaneously
<?php $_SESSION ['test'] [ 't****' ] = 'Hello'; var_dump($_SESSION); echo "\n" . $_SESSION [ 'test' ] [ 't****' ]; $var = "test2"; for ($i = 4 ; $i > 0 ; $i--){ $var [$i] = "*"; echo "\n" . $_SESSION['test'][$var]; } $var = "test2"; for ($i = 1 ; $i < 4 ; $i--){ $var = substr($var, count($var)-1, -$i) . '*'; echo "\n" . $_SESSION['test'][$var]; }

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)
8.3.60.0090.00616.63
8.3.50.0080.01022.06
8.3.40.0110.00319.06
8.3.30.0110.00418.79
8.3.20.0020.00519.14
8.3.10.0050.00321.87
8.3.00.0110.00420.64
8.2.180.0040.01116.71
8.2.170.0140.00022.96
8.2.160.0030.01121.19
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00022.26
8.2.120.0000.00826.35
8.2.110.0080.00019.39
8.2.100.0080.00417.91
8.2.90.0080.00019.25
8.2.80.0030.00517.97
8.2.70.0000.00817.75
8.2.60.0040.00418.04
8.2.50.0040.00418.10
8.2.40.0030.00522.31
8.2.30.0060.00319.37
8.2.20.0040.00417.83
8.2.10.0050.00218.07
8.2.00.0030.00618.16
8.1.280.0160.00625.92
8.1.270.0080.00023.91
8.1.260.0040.00428.09
8.1.250.0000.00828.09
8.1.240.0060.00321.12
8.1.230.0090.00317.52
8.1.220.0000.00817.74
8.1.210.0060.00318.77
8.1.200.0090.00017.35
8.1.190.0080.00017.25
8.1.180.0050.00318.10
8.1.170.0000.00818.36
8.1.160.0040.00422.13
8.1.150.0030.00618.88
8.1.140.0040.00419.45
8.1.130.0030.00317.63
8.1.120.0110.00017.42
8.1.110.0050.00317.36
8.1.100.0030.00517.44
8.1.90.0000.00717.35
8.1.80.0040.00417.47
8.1.70.0060.00317.34
8.1.60.0030.00517.46
8.1.50.0040.00417.41
8.1.40.0060.00617.51
8.1.30.0040.00417.71
8.1.20.0040.00417.67
8.1.10.0000.00717.50
8.1.00.0070.00017.48
8.0.300.0040.00418.77
8.0.290.0060.00316.63
8.0.280.0030.00318.39
8.0.270.0000.00817.26
8.0.260.0040.00417.25
8.0.250.0000.00717.00
8.0.240.0000.00616.93
8.0.230.0070.00017.03
8.0.220.0030.00316.85
8.0.210.0030.00316.98
8.0.200.0060.00017.00
8.0.190.0000.00817.07
8.0.180.0030.00716.89
8.0.170.0060.00316.96
8.0.160.0030.00316.86
8.0.150.0050.00316.88
8.0.140.0080.00416.93
8.0.130.0000.00613.33
8.0.120.0040.00416.82
8.0.110.0100.00016.97
8.0.100.0020.00516.84
8.0.90.0000.00816.79
8.0.80.0060.01616.93
8.0.70.0040.00416.88
8.0.60.0080.00016.79
8.0.50.0040.00416.94
8.0.30.0140.00317.01
8.0.20.0090.01017.40
8.0.10.0040.00417.09
8.0.00.0190.01016.79
7.4.330.0030.00315.08
7.4.320.0050.00516.55
7.4.300.0030.00616.35
7.4.290.0080.00016.41
7.4.280.0090.00916.45
7.4.270.0070.00016.49
7.4.260.0050.00516.39
7.4.250.0000.01416.47
7.4.240.0070.00716.39
7.4.230.0000.00816.45
7.4.220.0330.01716.43
7.4.210.0030.01316.60
7.4.200.0080.00816.20
7.4.160.0200.00916.31
7.4.150.0190.02017.40
7.4.140.0400.01317.86
7.4.130.0330.01216.43
7.4.120.0240.00616.36
7.4.110.0190.00516.54
7.4.100.1200.01416.46
7.4.90.0120.00816.38
7.4.80.0420.00919.39
7.4.70.0250.02316.59
7.4.60.0430.01516.33
7.4.50.0160.02116.57
7.4.40.0310.01116.43
7.4.30.0560.02916.37
7.4.00.0110.00714.95
7.3.330.0030.00613.20
7.3.320.0050.00913.17
7.3.310.0050.00516.20
7.3.300.0040.00916.18
7.3.290.0110.01416.31
7.3.280.0200.01416.30
7.3.270.0370.01417.40
7.3.260.0390.01216.37
7.3.250.0310.01216.40
7.3.240.0340.01316.36
7.3.230.0580.02616.46
7.3.210.0670.02316.38
7.3.200.0230.01216.36
7.3.190.0170.02316.63
7.3.180.0360.01016.48
7.3.170.0420.01516.35
7.3.160.0270.01416.46
7.2.330.0230.02416.52
7.2.320.0220.01616.40
7.2.310.0440.00816.43
7.2.300.0170.02616.56
7.2.290.0390.02416.33
7.2.60.0070.01116.86
7.2.50.0100.00316.90
7.2.00.0030.00719.56
7.1.200.0100.00315.48
7.1.70.0000.01117.29
7.1.60.0180.00517.21
7.1.50.0290.00634.66
7.1.00.0030.07322.19
7.0.200.0040.00416.90
7.0.100.3100.06720.27
7.0.90.1430.07019.95
7.0.80.1400.06020.04
7.0.70.0170.06020.09
7.0.60.0100.06020.03
7.0.50.1430.06320.41
7.0.40.1600.04720.49
7.0.30.2300.06020.45
7.0.20.1530.06720.37
7.0.10.1930.06020.31
7.0.00.2430.06320.48
5.6.250.0130.05320.72
5.6.240.0230.05720.70
5.6.230.0130.06320.68
5.6.220.0130.06320.52
5.6.210.0100.06020.77
5.6.200.0100.07021.06
5.6.190.0170.05321.17
5.6.180.0130.06321.08
5.6.170.0130.06321.10
5.6.160.0170.06321.08
5.6.150.0170.06021.08
5.6.140.0200.04721.11
5.6.130.0200.05321.10
5.6.120.0270.05321.11
5.6.110.0170.07021.09
5.6.100.0200.05321.18
5.6.90.0200.05321.08
5.6.80.0130.05320.54
5.6.70.0130.05320.55
5.6.60.0200.05320.58
5.6.50.0100.05720.59
5.6.40.0270.04020.41
5.6.30.0200.05020.49
5.6.20.0130.05720.47
5.6.10.0070.06020.44
5.6.00.0070.05720.49

preferences:
31.56 ms | 401 KiB | 5 Q