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 = 0 ; $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)
8.3.60.0140.00716.63
8.3.50.0100.00718.09
8.3.40.0120.00318.77
8.3.30.0070.00718.84
8.3.20.0040.00419.10
8.3.10.0040.00421.95
8.3.00.0100.00322.50
8.2.180.0060.01116.50
8.2.170.0120.00322.96
8.2.160.0070.01321.19
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00422.21
8.2.120.0040.00426.35
8.2.110.0090.00019.30
8.2.100.0040.00818.03
8.2.90.0060.00319.22
8.2.80.0070.00317.97
8.2.70.0000.00817.75
8.2.60.0060.00318.04
8.2.50.0040.00418.10
8.2.40.0040.00422.29
8.2.30.0070.00019.30
8.2.20.0050.00217.71
8.2.10.0000.00718.09
8.2.00.0040.00418.15
8.1.280.0120.00925.92
8.1.270.0000.00823.72
8.1.260.0040.00426.35
8.1.250.0060.00928.09
8.1.240.0060.00321.31
8.1.230.0060.00617.51
8.1.220.0040.00417.78
8.1.210.0040.00418.77
8.1.200.0090.00017.35
8.1.190.0080.00017.23
8.1.180.0050.00318.10
8.1.170.0040.00418.69
8.1.160.0040.00422.12
8.1.150.0040.00418.87
8.1.140.0000.00819.58
8.1.130.0030.00317.41
8.1.120.0030.00717.46
8.1.110.0070.00017.50
8.1.100.0070.00017.48
8.1.90.0000.00817.35
8.1.80.0020.00517.48
8.1.70.0070.00417.43
8.1.60.0000.00717.46
8.1.50.0060.00317.52
8.1.40.0000.00917.48
8.1.30.0080.00017.59
8.1.20.0080.00017.74
8.1.10.0000.00817.45
8.1.00.0000.00817.39
8.0.300.0000.00718.77
8.0.290.0060.00316.88
8.0.280.0030.00318.44
8.0.270.0000.00717.30
8.0.260.0070.00016.88
8.0.250.0070.00016.91
8.0.240.0030.00316.98
8.0.230.0030.00316.85
8.0.220.0070.00016.94
8.0.210.0070.00016.93
8.0.200.0000.00717.00
8.0.190.0030.00616.88
8.0.180.0000.01017.00
8.0.170.0040.00416.89
8.0.160.0000.00816.94
8.0.150.0040.00416.82
8.0.140.0030.00816.81
8.0.130.0030.00313.30
8.0.120.0060.00316.97
8.0.110.0000.01016.93
8.0.100.0030.00517.01
8.0.90.0040.00416.82
8.0.80.0100.00616.95
8.0.70.0040.00416.93
8.0.60.0030.00516.97
8.0.50.0000.00716.91
8.0.30.0080.00817.23
8.0.20.0090.01217.40
8.0.10.0050.00216.95
8.0.00.0140.00716.80
7.4.330.0000.00515.09
7.4.320.0000.00716.59
7.4.300.0000.00716.65
7.4.290.0040.00416.52
7.4.280.0000.00716.42
7.4.270.0000.00716.39
7.4.260.0000.00716.50
7.4.250.0080.00016.54
7.4.240.0070.00016.52
7.4.230.0030.00316.63
7.4.220.0070.01816.60
7.4.210.0080.00816.64
7.4.200.0030.00316.39
7.4.160.0080.00816.47
7.4.150.0100.00917.40
7.4.140.0090.00817.86
7.4.130.0070.01316.63
7.4.120.0070.01016.58
7.4.110.0140.01116.66
7.4.100.0030.01416.62
7.4.90.0060.01216.68
7.4.80.0140.00719.39
7.4.70.0080.00816.64
7.4.60.0090.00916.49
7.4.50.0070.00716.69
7.4.40.0100.00616.33
7.4.30.0150.00316.61
7.4.00.0000.01214.74
7.3.330.0040.00413.20
7.3.320.0030.00313.30
7.3.310.0000.00716.38
7.3.300.0040.00416.42
7.3.290.0050.01116.38
7.3.280.0090.00916.35
7.3.270.0110.00817.40
7.3.260.0150.00416.38
7.3.250.0070.01416.42
7.3.240.0090.00816.34
7.3.230.0120.00616.39
7.3.210.0090.01016.36
7.3.200.0140.00316.49
7.3.190.0130.00916.48
7.3.180.0160.00616.32
7.3.170.0040.01416.64
7.3.160.0080.01116.44
7.3.10.0100.00316.73
7.3.00.0060.00616.71
7.2.330.0100.01016.51
7.2.320.0100.00616.72
7.2.310.0070.01016.50
7.2.300.0050.01616.52
7.2.290.0070.01116.54
7.2.130.0050.00916.83
7.2.120.0100.00017.01
7.2.110.0070.00516.94
7.2.100.0090.00116.88
7.2.90.0080.00516.97
7.2.80.0060.00616.85
7.2.70.0020.00916.99
7.2.60.0040.00916.96
7.2.50.0080.00716.88
7.2.40.0060.00816.91
7.2.30.0080.00616.88
7.2.20.0080.00516.88
7.2.10.0110.00417.04
7.2.00.0070.00717.81
7.1.250.0060.00615.90
7.1.240.0040.00815.89
7.1.230.0030.00615.57
7.1.220.0040.00715.68
7.1.210.0030.00915.49
7.1.200.0050.00715.72
7.1.190.0000.01115.89
7.1.180.0030.00615.82
7.1.170.0000.00815.65
7.1.160.0000.01515.79
7.1.150.0090.00315.74
7.1.140.0040.00715.75
7.1.130.0000.01115.71
7.1.120.0050.00516.06
7.1.110.0000.01115.66
7.1.100.0060.00315.87
7.1.90.0110.00415.53
7.1.80.0110.00415.88
7.1.70.0030.00516.48
7.1.60.0050.00716.52
7.1.50.0100.01125.35
7.1.40.0100.00315.77
7.1.30.0120.00015.84
7.1.20.0040.00815.70
7.1.10.0030.00915.61
7.1.00.0050.03919.13
7.0.330.0060.00615.21
7.0.320.0080.00315.49
7.0.310.0060.00615.12
7.0.300.0040.00715.35
7.0.290.0060.00315.50
7.0.280.0000.00815.16
7.0.270.0030.00715.21
7.0.260.0030.00915.27
7.0.250.0030.00915.41
7.0.240.0040.00815.36
7.0.230.0000.00815.35
7.0.220.0080.00015.38
7.0.210.0110.00315.48
7.0.200.0040.00615.89
7.0.190.0050.00315.41
7.0.180.0080.00015.44
7.0.170.0030.00515.48
7.0.160.0060.00615.02
7.0.150.0040.00715.38
7.0.140.0000.01315.33
7.0.130.0000.00815.16
7.0.120.0030.01015.53
7.0.110.0030.01015.32
7.0.100.0560.03517.71
7.0.90.0500.03117.58
7.0.80.0460.04617.72
7.0.70.0120.03217.53
7.0.60.0080.03317.56
7.0.50.0100.03117.85
7.0.40.0130.02816.78
7.0.30.0220.04716.88
7.0.20.0620.04016.81
7.0.10.0580.04916.84
7.0.00.0610.05016.87
5.6.380.0100.00314.32
5.6.370.0060.00614.52
5.6.360.0070.00714.38
5.6.350.0040.01114.78
5.6.340.0030.01014.32
5.6.330.0040.00814.30
5.6.320.0040.00714.61
5.6.310.0060.00314.59
5.6.300.0030.00714.32
5.6.290.0030.00714.44
5.6.280.0100.00314.57
5.6.270.0080.00414.54
5.6.260.0040.00414.31
5.6.250.0160.04017.41
5.6.240.0060.03817.43
5.6.230.0090.03817.41
5.6.220.0070.03917.43
5.6.210.0240.02917.58
5.6.200.0120.03217.81
5.6.190.0050.03817.52
5.6.180.0130.03117.87
5.6.170.0080.04517.72
5.6.160.0080.04017.90
5.6.150.0070.03817.67
5.6.140.0110.03317.88
5.6.130.0120.04017.85
5.6.120.0150.03517.72
5.6.110.0050.03817.64
5.6.100.0140.03217.70
5.6.90.0020.05717.61
5.6.80.0150.02717.28
5.6.70.0120.03617.30
5.6.60.0080.03817.29
5.6.50.0130.03217.40
5.6.40.0080.03117.47
5.6.30.0070.04517.32
5.6.20.0110.03117.22
5.6.10.0080.03517.22
5.6.00.0080.04017.40

preferences:
60.57 ms | 400 KiB | 5 Q