3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump([ $original_set = [ 'arrayobject' => new arrayobject( [3] ), 'reference?' => [5] ], $original_serialized = serialize( $original_set ), $original_unserialized = unserialize( $original_serialized ), $withreference_serialized = preg_replace( '/a:1:{i:0;i:5;}}/', 'R:4;}', $original_serialized ), $withreference_unserialized = unserialize( $withreference_serialized ), $withreference_unserialized['reference?'][9] = 8, $referenced_arrayobject = & $withreference_unserialized['arrayobject'], $reference_array = & $withreference_unserialized['reference?'], $withreference_unserialized, ( ( $referenced_arrayobject[9] ) === ( $reference_array[9] ) ) ? 'looks like a reference' : 'does not look like a reference' , ]) ;

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)
8.3.60.0120.00618.52
8.3.50.0140.00521.16
8.3.40.0180.00418.93
8.3.30.0070.00719.09
8.3.20.0050.00320.39
8.3.10.0030.00521.94
8.3.00.0080.00021.95
8.2.180.0120.00316.63
8.2.170.0090.00622.96
8.2.160.0070.00720.52
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00017.75
8.2.110.0000.00922.21
8.2.100.0120.00017.80
8.2.90.0040.00419.04
8.2.80.0040.00417.97
8.2.70.0090.00017.88
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0060.00319.34
8.2.30.0070.00022.50
8.2.20.0040.00418.06
8.2.10.0000.00818.03
8.2.00.0000.00718.15
8.1.280.0150.00025.92
8.1.270.0070.01123.92
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00322.52
8.1.230.0040.00817.66
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0030.00617.48
8.1.190.0040.00417.25
8.1.180.0000.00818.10
8.1.170.0000.00818.58
8.1.160.0050.00322.02
8.1.150.0040.00418.88
8.1.140.0040.00417.63
8.1.130.0000.00717.85
8.1.120.0080.00017.67
8.1.110.0030.00617.50
8.1.100.0050.00317.52
8.1.90.0040.00417.50
8.1.80.0060.00317.69
8.1.70.0000.00817.54
8.1.60.0000.00817.76
8.1.50.0080.00017.69
8.1.40.0040.00417.58
8.1.30.0030.00717.82
8.1.20.0040.00417.82
8.1.10.0000.00817.80
8.1.00.0050.00517.70
8.0.300.0070.00018.77
8.0.290.0000.00716.88
8.0.280.0000.00718.58
8.0.270.0000.00717.30
8.0.260.0000.00617.21
8.0.250.0080.00017.20
8.0.240.0000.00817.18
8.0.230.0070.00017.22
8.0.220.0080.00017.14
8.0.210.0000.00717.13
8.0.200.0020.00517.20
8.0.190.0070.00317.21
8.0.180.0070.00017.16
8.0.170.0040.00417.18
8.0.160.0000.00717.04
8.0.150.0000.00717.05
8.0.140.0080.00016.96
8.0.130.0000.00613.50
8.0.120.0000.00817.13
8.0.110.0000.00716.96
8.0.100.0040.00417.15
8.0.90.0000.00717.23
8.0.80.0090.00917.00
8.0.70.0000.00817.23
8.0.60.0040.00416.94
8.0.50.0000.00817.13
8.0.30.0130.00717.10
8.0.20.0080.01317.46
8.0.10.0080.00017.02
8.0.00.0030.01416.99
7.4.330.0030.00315.08
7.4.320.0030.00316.83
7.4.300.0030.00316.85
7.4.290.0030.00316.83
7.4.280.0080.00016.80
7.4.270.0080.00016.88
7.4.260.0030.00316.73
7.4.250.0070.00016.84
7.4.240.0040.00316.84
7.4.230.0000.00716.55
7.4.220.0110.00716.88
7.4.210.0070.01016.85
7.4.200.0000.00716.73
7.4.160.0130.01016.63
7.4.150.0150.00417.40
7.4.140.0060.01717.86
7.4.130.0090.01016.67
7.4.120.0140.00616.66
7.4.110.0140.00416.78
7.4.100.0090.00916.70
7.4.90.0030.01416.86
7.4.80.0120.00819.39
7.4.70.0070.01016.87
7.4.60.0070.01016.84
7.4.50.0060.00316.60
7.4.40.0060.01516.86
7.4.30.0180.00016.79
7.4.00.0090.00615.27
7.3.330.0000.00513.52
7.3.320.0060.00013.33
7.3.310.0000.00716.33
7.3.300.0050.00216.38
7.3.290.0130.00516.54
7.3.280.0070.01216.55
7.3.270.0090.00917.40
7.3.260.0150.01116.65
7.3.250.0120.00916.70
7.3.240.0110.01616.82
7.3.230.0040.01316.55
7.3.210.0070.01016.69
7.3.200.0070.01016.51
7.3.190.0090.00616.56
7.3.180.0110.00816.50
7.3.170.0090.00916.68
7.3.160.0150.00916.80
7.2.330.0030.01616.83
7.2.320.0000.01816.70
7.2.310.0120.01016.90
7.2.300.0120.00616.93
7.2.290.0150.00316.79
7.2.60.0000.01417.00
7.2.00.0070.01019.38
7.1.200.0000.00715.79
7.1.100.0000.01218.25
7.1.70.0030.00617.11
7.1.60.0070.01719.14
7.1.50.0070.00717.23
7.1.00.0000.07722.38
7.0.200.0070.00016.86
7.0.60.0000.04320.08
7.0.50.0000.06717.85
7.0.40.0070.07019.80
7.0.30.0130.04719.97
7.0.20.0330.06719.77
7.0.10.0000.05019.92
7.0.00.0100.03719.78
5.6.280.0070.07321.02
5.6.210.0100.08020.72
5.6.200.0070.07718.22
5.6.190.0130.06720.57
5.6.180.0200.04020.32
5.6.170.0130.07020.49
5.6.160.0070.03720.54
5.6.150.0070.07318.09
5.6.140.0100.04018.07
5.6.130.0070.05018.20
5.6.120.0170.07721.01
5.6.110.0030.04721.13
5.6.100.0000.06721.04
5.6.90.0100.05721.12
5.6.80.0170.07320.50
5.5.350.0070.08720.38
5.5.340.0070.08017.98
5.5.330.0030.05320.36
5.5.320.3100.04020.23
5.5.310.0330.07020.28
5.5.300.0070.07018.01
5.5.290.0130.03317.98
5.5.280.0030.05020.89
5.5.270.0030.06020.75
5.5.260.0070.08020.83
5.5.250.0070.08320.70
5.5.240.0000.06320.36
5.4.450.0970.07319.18
5.4.440.0800.05719.55
5.4.430.0770.06019.43
5.4.420.0800.05019.57
5.4.410.0700.05719.44
5.4.400.0700.05719.26
5.4.390.0870.06019.22
5.4.380.0730.05318.98
5.4.370.0700.06019.20
5.4.360.0800.05719.22
5.4.350.0870.05719.22
5.4.340.0700.06319.17
5.4.320.0770.05019.14
5.4.310.0770.04719.09
5.4.300.0730.05319.24
5.4.290.0830.04719.21
5.4.280.0700.06019.14
5.4.270.0800.05319.08
5.4.260.0800.04718.93
5.4.250.0700.06019.08
5.4.240.0670.05719.02
5.4.230.0800.06719.14
5.4.220.0800.04719.06
5.4.210.0700.06319.21
5.4.200.0830.04719.21
5.4.190.0700.05719.07
5.4.180.0800.06019.23
5.4.170.0730.06318.84
5.4.160.0670.05719.23
5.4.150.0830.04018.78
5.4.140.0800.04716.42
5.4.130.0800.04716.32
5.4.120.0770.04316.27
5.4.110.0670.05316.45
5.4.100.0700.05316.28
5.4.90.0730.04316.22
5.4.80.0730.05016.38
5.4.70.0330.03716.42
5.4.60.0030.06716.37
5.4.50.0030.06016.40
5.4.40.0230.03316.36
5.4.30.0330.05016.36
5.4.20.0230.07316.38

preferences:
41.01 ms | 401 KiB | 5 Q