3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public ?string $foo; public string $foobar; public ?string $bar = ''; } $vars = get_object_vars(new A); var_dump(assert(array_key_exists('bar', $vars)) ? 'bar exists in $vars' : 'bar does not exist in $vars'); var_dump(assert(array_key_exists('foobar', $vars)) ? 'foobar exists in $vars' : 'foobar does not exist in $vars'); var_dump(assert(array_key_exists('foo', $vars)) ? 'foo exists in $vars' : 'foo does not exist in $vars');

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)
8.3.70.0130.00616.63
8.3.60.0040.01118.30
8.3.50.0100.01016.43
8.3.40.0070.01118.84
8.3.30.0040.01118.73
8.3.20.0050.00220.78
8.3.10.0040.00420.30
8.3.00.0040.00421.73
8.2.190.0120.00316.58
8.2.180.0090.00618.39
8.2.170.0030.01022.96
8.2.160.0070.01020.27
8.2.150.0000.00824.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0040.00426.16
8.2.110.0070.00319.19
8.2.100.0050.00617.79
8.2.90.0000.01017.75
8.2.80.0030.00517.97
8.2.70.0030.00617.38
8.2.60.0030.00517.93
8.2.50.0000.00817.93
8.2.40.0050.00319.53
8.2.30.0070.00017.86
8.2.20.0000.00718.11
8.2.10.0000.00719.30
8.2.00.0000.00719.18
8.1.280.0140.00025.92
8.1.270.0070.00320.88
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00022.77
8.1.230.0080.00417.77
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0050.00317.13
8.1.180.0050.00518.10
8.1.170.0050.00317.62
8.1.160.0000.00718.88
8.1.150.0000.00718.79
8.1.140.0040.00422.09
8.1.130.0030.00317.39
8.1.120.0050.00317.34
8.1.110.0050.00217.30
8.1.100.0080.00017.39
8.1.90.0040.00817.32
8.1.80.0030.00617.36
8.1.70.0000.00717.20
8.1.60.0040.00417.54
8.1.50.0000.00717.53
8.1.40.0090.00317.53
8.1.30.0030.00517.54
8.1.20.0000.00817.66
8.1.10.0040.00417.56
8.1.00.0040.00417.48
8.0.300.0040.00418.77
8.0.290.0050.00216.63
8.0.280.0000.00718.42
8.0.270.0000.00718.05
8.0.260.0000.00716.84
8.0.250.0070.00016.85
8.0.240.0030.00316.93
8.0.230.0000.01017.00
8.0.220.0040.00416.76
8.0.210.0060.00016.86
8.0.200.0060.00016.92
8.0.190.0030.00616.87
8.0.180.0000.00716.95
8.0.170.0040.00716.88
8.0.160.0000.00716.86
8.0.150.0030.00716.89
8.0.140.0040.00416.85
8.0.130.0000.00613.36
8.0.120.0070.00016.83
8.0.110.0050.00316.84
8.0.100.0040.00417.00
8.0.90.0030.00616.95
8.0.80.0140.00816.80
8.0.70.0040.00416.75
8.0.60.0040.00416.90
8.0.50.0070.00016.77
8.0.30.0140.00917.15
8.0.20.0060.01217.27
8.0.10.0040.00416.82
8.0.00.0100.01016.84
7.4.330.0060.00015.55
7.4.320.0030.00316.59
7.4.300.0000.00616.36
7.4.290.0000.00716.53
7.4.280.0060.00316.44
7.4.270.0000.00816.59
7.4.260.0000.00513.31
7.4.250.0040.00416.57
7.4.240.0040.00416.51
7.4.230.0000.00716.66
7.4.220.0050.00216.48
7.4.210.0080.01116.57
7.4.200.0070.00016.32
7.4.140.0130.00417.86
7.4.130.0150.00416.45
7.4.120.0000.01816.43
7.4.110.0120.00916.55
7.4.100.0130.00616.56
7.4.90.0160.00316.48
7.4.80.0110.00619.39
7.4.70.0060.01016.72
7.4.60.0140.00316.41
7.4.50.0040.01116.51
7.4.40.0080.00816.64
7.4.20.0110.00716.54
7.4.10.0090.00916.47
7.4.00.0090.00715.59
7.3.330.0040.00416.20
7.3.320.0050.00012.97
7.3.310.0030.00316.03
7.3.300.0000.00716.17
7.3.290.0070.00916.14
7.3.280.0120.00316.21
7.3.260.0180.00016.31
7.3.240.0080.00916.24
7.3.230.0130.00316.19
7.3.210.0140.00316.33
7.3.200.0080.00816.29
7.3.190.0030.01316.37
7.3.180.0030.01416.38
7.3.170.0030.02016.30
7.3.160.0070.01016.20
7.3.140.0110.00516.25
7.3.130.0070.01216.29
7.3.120.0070.00815.46
7.3.110.0100.00515.49
7.3.100.0080.00915.31
7.3.90.0050.01115.31
7.3.80.0070.00915.54
7.3.70.0050.01015.32
7.3.60.0110.00615.38
7.3.50.0030.01315.35
7.3.40.0070.00915.35
7.3.30.0060.00915.47
7.3.20.0090.00615.32
7.3.10.0090.00715.39
7.3.00.0080.00815.37
7.2.330.0120.00616.17
7.2.320.0100.00616.40
7.2.310.0140.00316.22
7.2.300.0090.00916.35
7.2.290.0100.00716.44
7.2.270.0050.01316.29
7.2.260.0080.01116.34
7.2.250.0070.00915.69
7.2.240.0080.00715.39
7.2.230.0080.00715.65
7.2.220.0090.00815.39
7.2.210.0070.00915.41
7.2.200.0110.00515.40
7.2.190.0050.01115.40
7.2.180.0100.00515.47
7.2.170.0060.01115.45
7.2.160.0060.01016.21
7.2.150.0090.01116.34
7.2.140.0070.01116.40
7.2.130.0120.00816.39
7.2.120.0110.00916.47
7.2.110.0100.01016.54
7.2.100.0150.00216.33
7.2.90.0080.01116.42
7.2.80.0100.01016.36
7.2.70.0100.00916.42
7.2.60.0120.00716.38
7.2.50.0110.00816.33
7.2.40.0080.01116.51
7.2.30.0070.01216.39
7.2.20.0090.00916.30
7.2.10.0080.01516.29
7.2.00.0120.00816.42
7.1.330.0070.01113.70
7.1.320.0080.00613.70
7.1.310.0110.00513.86
7.1.300.0080.00613.72
7.1.290.0070.00613.62
7.1.280.0100.00613.69
7.1.270.0080.00613.63
7.1.260.0090.00813.59

preferences:
23.66 ms | 401 KiB | 5 Q