3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { private $a = 0; } $a = new A(); $b = (object)[chr(0) . 'A' . chr(0) . 'a' => 1]; $c = json_decode('{ "' . 'A' . 'a' . '":"2" }'); var_dump($c); echo $c->{chr(0) . 'A' . chr(0) . 'a'}; echo $b->{chr(0) . 'A' . chr(0) . 'a'}; echo $a->{chr(0) . 'A' . 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)
8.3.70.0080.00816.74
8.3.60.0100.00718.56
8.3.50.0090.00917.26
8.3.40.0140.00418.84
8.3.30.0070.00718.84
8.3.20.0080.00019.10
8.3.10.0040.00421.65
8.3.00.0090.00019.66
8.2.180.0180.00416.63
8.2.170.0040.01122.96
8.2.160.0100.00320.39
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0080.00022.08
8.2.120.0040.00426.35
8.2.110.0030.00719.24
8.2.100.0070.00417.91
8.2.90.0040.00419.22
8.2.80.0000.00818.04
8.2.70.0040.00417.63
8.2.60.0040.00417.93
8.2.50.0000.00818.10
8.2.40.0050.00320.52
8.2.30.0040.00419.16
8.2.20.0040.00418.10
8.2.10.0040.00417.98
8.2.00.0070.00018.04
8.1.280.0170.00325.92
8.1.270.0040.00422.13
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00422.20
8.1.230.0070.00417.42
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0030.00617.35
8.1.190.0000.00817.22
8.1.180.0040.00418.10
8.1.170.0040.00418.50
8.1.160.0070.00018.93
8.1.150.0000.00918.74
8.1.140.0100.00019.43
8.1.130.0000.00718.84
8.1.120.0050.00217.41
8.1.110.0020.00517.32
8.1.100.0040.00417.38
8.1.90.0000.00717.42
8.1.80.0000.01117.43
8.1.70.0070.00017.50
8.1.60.0040.00417.55
8.1.50.0000.00817.41
8.1.40.0030.00617.55
8.1.30.0080.00017.64
8.1.20.0040.00417.70
8.1.10.0020.00517.55
8.1.00.0020.00517.47
8.0.300.0050.00218.77
8.0.290.0000.00816.75
8.0.280.0050.00318.45
8.0.270.0040.00417.19
8.0.260.0040.00416.82
8.0.250.0070.00016.93
8.0.240.0000.00816.88
8.0.230.0030.00316.86
8.0.220.0030.00316.90
8.0.210.0000.00716.93
8.0.200.0040.00416.88
8.0.190.0060.00316.94
8.0.180.0050.00316.85
8.0.170.0000.00716.94
8.0.160.0040.00316.91
8.0.150.0040.00416.76
8.0.140.0000.00716.76
8.0.130.0030.00313.33
8.0.120.0080.00016.91
8.0.110.0040.00416.95
8.0.100.0050.00216.79
8.0.90.0040.00416.72
8.0.80.0120.01216.80
8.0.70.0000.00816.82
8.0.60.0060.00316.88
8.0.50.0040.00416.76
8.0.30.0110.00917.20
8.0.20.0100.00917.40
8.0.10.0070.00016.95
8.0.00.0120.00616.94
7.4.330.0000.00515.55
7.4.320.0000.00616.56
7.4.300.0070.00016.41
7.4.290.0030.00316.64
7.4.280.0050.00316.41
7.4.270.0070.00016.53
7.4.260.0070.00013.28
7.4.250.0030.00316.57
7.4.240.0000.00716.66
7.4.230.0030.00316.50
7.4.220.0040.01516.54
7.4.210.0060.00816.54
7.4.200.0030.00316.43
7.4.160.0100.00916.34
7.4.150.0120.00817.40
7.4.140.0140.00817.86
7.4.130.0060.01216.58
7.4.120.0100.00916.48
7.4.110.0130.00516.66
7.4.100.0030.01416.60
7.4.90.0090.00816.54
7.4.80.0080.01519.39
7.4.70.0080.00816.52
7.4.60.0110.01116.41
7.4.50.0060.00916.60
7.4.40.0110.00916.66
7.4.30.0130.00316.60
7.4.00.0120.00315.04
7.3.330.0020.00213.16
7.3.320.0020.00213.16
7.3.310.0030.00316.34
7.3.300.0040.00416.30
7.3.290.0070.00016.25
7.3.280.0090.00816.31
7.3.270.0180.01917.40
7.3.260.0110.00716.52
7.3.250.0090.00816.41
7.3.240.0100.00816.43
7.3.230.0140.00316.46
7.3.210.0150.00416.53
7.3.200.0060.00916.47
7.3.190.0090.00616.37
7.3.180.0100.01016.43
7.3.170.0080.00816.49
7.3.160.0030.01216.32
7.3.10.0110.00816.37
7.3.00.0100.01016.13
7.2.330.0170.00316.53
7.2.320.0080.01016.71
7.2.310.0030.01316.56
7.2.300.0060.01016.55
7.2.290.0100.00716.90
7.2.130.0110.00816.74
7.2.120.0200.01216.39
7.2.110.0100.01716.05
7.2.100.0160.00616.45
7.2.90.0180.00916.86
7.2.80.0090.01216.34
7.2.70.0190.00716.30
7.2.60.0160.01016.85
7.2.50.0140.00716.11
7.2.40.0120.01216.53
7.2.30.0130.01016.41
7.2.20.0170.00316.45
7.2.10.0170.00316.34
7.2.00.0120.00518.11
7.1.250.0060.01215.23
7.1.200.0030.00915.78
7.1.100.0080.00318.02
7.1.70.0090.00317.25
7.1.60.1530.01033.01
7.1.50.1500.01332.91
7.1.40.1530.01032.75
7.1.30.2030.01732.69
7.1.20.1470.02032.83
7.1.10.1900.01714.64
7.1.00.1830.01314.77
7.0.200.1870.01315.08
7.0.190.2300.01315.00
7.0.180.1770.01714.36
7.0.170.1900.01014.35
7.0.160.2970.01014.39
7.0.150.1700.01314.35
7.0.140.2130.01014.24
7.0.130.2030.01314.54
7.0.120.1730.00714.61
7.0.110.1700.01314.64
7.0.100.1630.01314.35
7.0.90.1530.01314.64
7.0.80.1870.01014.42
7.0.70.1870.00714.56
7.0.60.1330.01714.41
7.0.50.1470.00714.24
7.0.40.1500.02014.34
7.0.30.1670.01314.52
7.0.20.1500.01714.75
7.0.10.1330.01014.50
7.0.00.1630.02014.67

preferences:
55.02 ms | 401 KiB | 5 Q