3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { protected $a = 0; } $a = new A(); $b = (object)[chr(0) . '*' . chr(0) . 'a' => 1]; echo $b->{chr(0) . '*' . chr(0) . 'a'}; echo $a->{chr(0) . '*' . chr(0) . 'a'};

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)
8.3.70.0120.00918.28
8.3.60.0070.00718.55
8.3.50.0090.00616.47
8.3.40.0110.00418.93
8.3.30.0090.00618.71
8.3.20.0040.00419.15
8.3.10.0070.00021.90
8.3.00.0040.00419.54
8.2.180.0110.00418.54
8.2.170.0130.01322.96
8.2.160.0070.00720.43
8.2.150.0030.00725.66
8.2.140.0040.00424.66
8.2.130.0100.00720.37
8.2.120.0070.00026.35
8.2.110.0060.00320.55
8.2.100.0080.00417.84
8.2.90.0040.00419.21
8.2.80.0080.00017.97
8.2.70.0040.00417.63
8.2.60.0100.00018.04
8.2.50.0040.00418.10
8.2.40.0050.00220.32
8.2.30.0040.00419.15
8.2.20.0040.00417.99
8.2.10.0000.00817.97
8.2.00.0030.00318.18
8.1.280.0120.00625.92
8.1.270.0050.00322.13
8.1.260.0000.00726.35
8.1.250.0080.00028.09
8.1.240.0090.00020.81
8.1.230.0080.00419.16
8.1.220.0000.01217.74
8.1.210.0040.00418.77
8.1.200.0040.00417.23
8.1.190.0030.00617.23
8.1.180.0030.00618.10
8.1.170.0040.00418.72
8.1.160.0030.00318.95
8.1.150.0080.00018.70
8.1.140.0090.00019.38
8.1.130.0040.00418.93
8.1.120.0070.00017.46
8.1.110.0000.00717.31
8.1.100.0050.00317.32
8.1.90.0040.00417.43
8.1.80.0030.00617.43
8.1.70.0040.00417.49
8.1.60.0040.00417.56
8.1.50.0040.00417.52
8.1.40.0050.00517.47
8.1.30.0070.00017.63
8.1.20.0060.00617.69
8.1.10.0040.00417.61
8.1.00.0000.00717.44
8.0.300.0000.00718.77
8.0.290.0020.00516.63
8.0.280.0030.00518.22
8.0.270.0030.00317.25
8.0.260.0040.00416.72
8.0.250.0030.00316.98
8.0.240.0060.00316.82
8.0.230.0070.00016.83
8.0.220.0070.00016.93
8.0.210.0030.00616.91
8.0.200.0000.00816.99
8.0.190.0040.00416.79
8.0.180.0040.00416.83
8.0.170.0070.00016.90
8.0.160.0040.00416.73
8.0.150.0030.00516.91
8.0.140.0040.00416.86
8.0.130.0030.00313.29
8.0.120.0030.00516.83
8.0.110.0000.00716.95
8.0.100.0000.00716.88
8.0.90.0000.00716.70
8.0.80.0040.01116.91
8.0.70.0040.00416.91
8.0.60.0000.00716.79
8.0.50.0040.00416.73
8.0.30.0080.01016.91
8.0.20.0100.01117.40
8.0.10.0000.00717.11
8.0.00.0070.01016.60
7.4.330.0020.00215.55
7.4.320.0000.00616.56
7.4.300.0030.00316.51
7.4.290.0070.00016.41
7.4.280.0080.00016.58
7.4.270.0030.00316.40
7.4.260.0000.00613.30
7.4.250.0060.00316.45
7.4.240.0040.00416.39
7.4.230.0030.00316.42
7.4.220.0110.00716.70
7.4.210.0090.00616.50
7.4.200.0030.00316.67
7.4.160.0070.01016.40
7.4.150.0160.00317.40
7.4.140.0130.00517.86
7.4.130.0100.00816.39
7.4.120.0080.01116.55
7.4.110.0090.00916.41
7.4.100.0090.00916.53
7.4.90.0140.00316.55
7.4.80.0100.00619.39
7.4.70.0090.00916.60
7.4.60.0070.01016.47
7.4.50.0060.00916.68
7.4.40.0130.00316.63
7.4.30.0090.00916.37
7.4.00.0030.01315.03
7.3.330.0080.00013.27
7.3.320.0030.00313.32
7.3.310.0050.00316.25
7.3.300.0000.00616.24
7.3.290.0000.00716.11
7.3.280.0110.00816.28
7.3.270.0310.03517.40
7.3.260.0080.00816.56
7.3.250.0110.01116.34
7.3.240.0100.00616.46
7.3.230.0150.00316.36
7.3.210.0140.00316.42
7.3.200.0140.00316.46
7.3.190.0140.00316.35
7.3.180.0130.00716.42
7.3.170.0110.00716.50
7.3.160.0080.00816.33
7.2.330.0160.00616.66
7.2.320.0170.00016.68
7.2.310.0090.00816.43
7.2.300.0050.01916.60
7.2.290.0070.01716.40
7.2.60.0100.00717.00
7.2.00.0060.00919.48
7.1.200.0030.00915.77
7.1.100.0110.00018.27
7.1.70.0040.00417.23
7.1.60.1430.02733.36
7.1.50.0230.01032.93
7.1.40.0230.02032.71
7.1.30.0300.01032.75
7.1.20.0230.02032.71
7.1.10.0170.01314.89
7.1.00.0130.01015.02
7.0.200.0070.01314.90
7.0.190.0100.01314.70
7.0.180.0630.01014.53
7.0.170.1700.01314.40
7.0.160.0070.01314.44
7.0.150.1530.01314.44
7.0.140.0500.01014.39
7.0.130.0070.01714.70
7.0.120.1270.00314.77
7.0.110.0030.01314.39
7.0.100.1130.00714.59
7.0.90.1430.01314.36
7.0.80.1770.00714.29
7.0.70.1570.01014.33
7.0.60.0100.01014.35
7.0.50.0130.00714.44
7.0.40.1770.01314.52
7.0.30.1870.01014.83
7.0.20.0170.01014.68
7.0.10.0100.01314.59
7.0.00.0130.01714.31

preferences:
34.65 ms | 401 KiB | 5 Q