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['arrayobject'][9] = 8, # $withreference_unserialized, # $withreference_unserialized['arrayobject'][9] === $withreference_unserialized['reference?'][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)
8.3.60.0120.00918.56
8.3.50.0270.01221.27
8.3.40.0110.00719.13
8.3.30.0070.00718.95
8.3.20.0080.00020.30
8.3.10.0080.00021.80
8.3.00.0050.00320.20
8.2.180.0040.01116.88
8.2.170.0070.00722.96
8.2.160.0070.00720.51
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0100.00017.75
8.2.110.0060.00622.32
8.2.100.0090.00317.93
8.2.90.0000.00819.05
8.2.80.0000.00817.97
8.2.70.0060.00317.88
8.2.60.0020.00617.93
8.2.50.0040.00418.07
8.2.40.0060.00319.51
8.2.30.0000.00722.54
8.2.20.0030.00617.95
8.2.10.0030.00518.16
8.2.00.0050.00218.20
8.1.280.0060.00925.92
8.1.270.0000.00923.71
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0000.00922.51
8.1.230.0080.00417.64
8.1.220.0040.00417.76
8.1.210.0050.00318.77
8.1.200.0060.00317.61
8.1.190.0000.00917.60
8.1.180.0050.00318.10
8.1.170.0040.00418.74
8.1.160.0000.00722.08
8.1.150.0040.00418.99
8.1.140.0030.00517.58
8.1.130.0000.00717.68
8.1.120.0030.00517.68
8.1.110.0000.00717.60
8.1.100.0000.00717.60
8.1.90.0050.00317.68
8.1.80.0030.00517.49
8.1.70.0080.00017.57
8.1.60.0050.00317.79
8.1.50.0000.00817.77
8.1.40.0040.00417.68
8.1.30.0030.00517.74
8.1.20.0030.00617.77
8.1.10.0050.00317.79
8.1.00.0000.00917.70
8.0.300.0000.00718.77
8.0.290.0070.00017.13
8.0.280.0030.00318.41
8.0.270.0070.00017.23
8.0.260.0000.00617.29
8.0.250.0050.00217.18
8.0.240.0030.00617.19
8.0.230.0030.00317.17
8.0.220.0070.00017.12
8.0.210.0030.00617.19
8.0.200.0040.00417.23
8.0.190.0070.00417.20
8.0.180.0040.00417.13
8.0.170.0000.00717.20
8.0.160.0000.00717.10
8.0.150.0070.00017.04
8.0.140.0070.00017.02
8.0.130.0090.00013.52
8.0.120.0060.00317.07
8.0.110.0000.00717.09
8.0.100.0040.00417.14
8.0.90.0040.00417.14
8.0.80.0040.01117.06
8.0.70.0040.00416.97
8.0.60.0000.00817.01
8.0.50.0040.00417.14
8.0.30.0100.01017.27
8.0.20.0070.01317.47
8.0.10.0000.00817.20
8.0.00.0090.00916.89
7.4.330.0000.00515.08
7.4.320.0030.00616.73
7.4.300.0030.00316.84
7.4.290.0030.00316.70
7.4.280.0060.00316.75
7.4.270.0070.00016.83
7.4.260.0030.00516.73
7.4.250.0000.00816.71
7.4.240.0000.00716.81
7.4.230.0030.00516.73
7.4.220.0140.01416.77
7.4.210.0120.00316.73
7.4.200.0030.00316.87
7.4.160.0090.01316.54
7.4.150.0070.01017.40
7.4.140.0170.00517.86
7.4.130.0070.01316.84
7.4.120.0120.00816.74
7.4.110.0120.00616.95
7.4.100.0100.01316.98
7.4.90.0100.00716.99
7.4.80.0110.00919.39
7.4.70.0100.01016.75
7.4.60.0140.00316.69
7.4.50.0030.00616.81
7.4.40.0090.00916.89
7.4.30.0120.00616.84
7.4.00.0060.00815.38
7.3.330.0030.00313.27
7.3.320.0060.00013.41
7.3.310.0000.00716.52
7.3.300.0040.00416.33
7.3.290.0100.00616.43
7.3.280.0090.00916.39
7.3.270.0140.00417.40
7.3.260.0060.02016.57
7.3.250.0120.00716.62
7.3.240.0060.01116.65
7.3.230.0100.00716.46
7.3.210.0060.01216.82
7.3.200.0160.00016.55
7.3.190.0030.01316.41
7.3.180.0070.01716.66
7.3.170.0030.01816.58
7.3.160.0080.01316.59
7.3.120.0110.00715.05
7.3.110.0100.01014.82
7.3.100.0070.01314.79
7.3.90.0090.00615.00
7.3.80.0030.00715.20
7.3.70.0030.00615.12
7.3.60.0070.00715.03
7.3.50.0140.00014.92
7.3.40.0060.00314.72
7.3.30.0030.01415.04
7.3.20.0070.01116.59
7.3.10.0040.01416.64
7.3.00.0030.01116.85
7.2.330.0090.00916.84
7.2.320.0090.00916.68
7.2.310.0060.01216.82
7.2.300.0130.00516.65
7.2.290.0060.01216.71
7.2.250.0070.01315.36
7.2.240.0030.01615.18
7.2.230.0030.01015.20
7.2.220.0070.01015.23
7.2.210.0110.00015.16
7.2.200.0080.00815.18
7.2.190.0030.01015.31
7.2.180.0060.01015.31
7.2.170.0040.01115.19
7.2.160.0100.00715.38
7.2.150.0030.01317.02
7.2.140.0060.00916.84
7.2.130.0070.00417.16
7.2.120.0040.01117.17
7.2.110.0120.00617.23
7.2.100.0090.00417.07
7.2.90.0030.01517.16
7.2.80.0060.00916.87
7.2.70.0000.01417.09
7.2.60.0080.00516.98
7.2.50.0070.00717.09
7.2.40.0070.00717.26
7.2.30.0070.00716.95
7.2.20.0030.01017.06
7.2.10.0120.00317.26
7.2.00.0030.01218.44
7.1.330.0060.01215.83
7.1.320.0070.00715.87
7.1.310.0070.00715.88
7.1.300.0030.00916.19
7.1.290.0070.00715.68
7.1.280.0070.00415.87
7.1.270.0000.01415.98
7.1.260.0060.00915.79
7.1.250.0000.01315.67
7.1.240.0030.01416.01
7.1.230.0080.00815.84
7.1.220.0030.00615.94
7.1.210.0060.00615.59
7.1.200.0060.00715.79
7.1.190.0060.00615.65
7.1.180.0060.00516.04
7.1.170.0060.00615.82
7.1.160.0070.00715.93
7.1.150.0060.00316.04
7.1.140.0100.00315.78
7.1.130.0030.01316.07
7.1.120.0070.00715.96
7.1.110.0000.01315.99
7.1.100.0000.01517.26
7.1.90.0000.01615.96
7.1.80.0090.00515.93
7.1.70.0020.00916.60
7.1.60.0120.00417.59
7.1.50.0030.00916.32
7.1.40.0100.00316.07
7.1.30.0030.00915.83
7.1.20.0100.00316.00
7.1.10.0070.00315.96
7.1.00.0040.04618.96
7.0.330.0000.01515.73
7.0.320.0030.01315.39
7.0.310.0100.00615.42
7.0.300.0040.00815.68
7.0.290.0090.00615.67
7.0.280.0090.00615.55
7.0.270.0030.00615.68
7.0.260.0030.00915.41
7.0.250.0100.00315.66
7.0.240.0090.00315.59
7.0.230.0040.01215.44
7.0.220.0120.00315.72
7.0.210.0030.00915.75
7.0.200.0060.00616.22
7.0.190.0040.01115.66
7.0.180.0050.00515.73
7.0.170.0050.00915.82
7.0.160.0030.01015.71
7.0.150.0080.00315.59
7.0.140.0100.00015.68
7.0.130.0070.00215.45
7.0.120.0070.00415.51
7.0.110.0000.01015.52
7.0.100.0050.00315.70
7.0.90.0070.00215.55
7.0.80.0030.00515.48
7.0.70.0090.00015.75
7.0.60.0080.03017.79
7.0.50.0060.03016.63
7.0.40.0120.02816.93
7.0.30.0250.03516.72
7.0.20.0200.02616.85
7.0.10.0030.03016.71
7.0.00.0060.04616.72
5.6.400.0070.00414.19
5.6.390.0040.01114.75
5.6.380.0040.00414.44
5.6.370.0040.00914.72
5.6.360.0040.01114.63
5.6.350.0100.00314.98
5.6.340.0100.00314.47
5.6.330.0060.00814.34
5.6.320.0030.00714.41
5.6.310.0070.00314.63
5.6.300.0100.00214.44
5.6.290.0070.00714.50
5.6.280.0070.03617.73
5.6.270.0060.00614.66
5.6.260.0000.01114.55
5.6.250.0070.00314.89
5.6.240.0000.01414.71
5.6.230.0070.00314.60
5.6.220.0000.01114.72
5.6.210.0050.02017.60
5.6.200.0050.02816.44
5.6.190.0080.04017.49
5.6.180.0180.02817.42
5.6.170.0100.03017.62
5.6.160.0070.03017.49
5.6.150.0020.02716.35
5.6.140.0150.03016.25
5.6.130.0070.04216.18
5.6.120.0040.03517.81
5.6.110.0000.02717.79
5.6.100.0030.03517.67
5.6.90.0060.04317.66
5.6.80.0100.02217.55
5.6.70.0040.01114.37
5.6.60.0030.01414.28
5.6.50.0060.00614.70
5.6.40.0040.01114.75
5.6.30.0080.00414.34
5.6.20.0070.00414.65
5.6.10.0060.00914.69
5.6.00.0100.01014.34
5.5.380.0070.00413.95
5.5.370.0070.00314.44
5.5.360.0030.01114.43
5.5.350.0120.04417.58
5.5.340.0080.04216.15
5.5.330.0050.04617.42
5.5.320.0340.03717.30
5.5.310.0150.04017.32
5.5.300.0110.04016.16
5.5.290.0030.02616.17
5.5.280.0050.02517.48
5.5.270.0100.02517.65
5.5.260.0030.02517.62
5.5.250.0120.04017.35
5.5.240.0120.03617.21
5.5.230.0070.00714.44
5.5.220.0090.00914.40
5.5.210.0070.00714.49
5.5.200.0030.01014.39
5.5.190.0080.00414.27
5.5.180.0040.00414.31
5.5.170.0040.01414.05
5.5.160.0030.01014.41
5.5.150.0060.00314.16
5.5.140.0040.01114.26
5.5.130.0030.00914.29
5.5.120.0120.00313.99
5.5.110.0100.00714.02
5.5.100.0000.01214.30
5.5.90.0040.01114.20
5.5.80.0060.00914.14
5.5.70.0130.00614.49
5.5.60.0070.01014.39
5.5.50.0040.01414.53
5.5.40.0130.00014.40
5.5.30.0000.01414.02
5.5.20.0070.01114.16
5.5.10.0030.01314.36
5.5.00.0060.01214.53
5.4.450.0140.04016.06
5.4.440.0110.04715.96
5.4.430.0130.02816.06
5.4.420.0120.04415.96
5.4.410.0170.03515.91
5.4.400.0130.02515.94
5.4.390.0110.02315.90
5.4.380.0150.03715.89
5.4.370.0120.02715.80
5.4.360.0150.03915.94
5.4.350.0150.03815.82
5.4.340.0110.04115.96
5.4.330.0070.01112.71
5.4.320.0120.03415.92
5.4.310.0170.03815.96
5.4.300.0130.03815.92
5.4.290.0140.03915.96
5.4.280.0130.03815.88
5.4.270.0170.04015.96
5.4.260.0100.04015.79
5.4.250.0180.03415.93
5.4.240.0070.03415.90
5.4.230.0140.02415.81
5.4.220.0120.03815.74
5.4.210.0140.03515.92
5.4.200.0150.03415.81
5.4.190.0150.03615.75
5.4.180.0120.04115.89
5.4.170.0140.02615.75
5.4.160.0110.04815.87
5.4.150.0100.03415.75
5.4.140.0130.02114.63
5.4.130.0180.03614.52
5.4.120.0120.03614.48
5.4.110.0120.04314.55
5.4.100.0180.03614.48
5.4.90.0200.03314.55
5.4.80.0150.03014.51
5.4.70.0110.00312.71
5.4.60.0050.00512.71
5.4.50.0090.00012.71
5.4.40.0000.01212.71
5.4.30.0030.01012.71
5.4.20.0060.00612.71
5.4.10.0080.00412.71
5.4.00.0000.01112.71

preferences:
81.55 ms | 401 KiB | 5 Q