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)
8.3.60.0070.01418.55
8.3.50.0110.00821.04
8.3.40.0110.00418.90
8.3.30.0040.01119.04
8.3.20.0040.00420.16
8.3.10.0040.00421.69
8.3.00.0000.00720.34
8.2.180.0220.00018.79
8.2.170.0150.00022.96
8.2.160.0070.00719.24
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0050.00326.16
8.2.120.0030.00617.75
8.2.110.0030.00622.23
8.2.100.0080.00417.80
8.2.90.0060.00319.22
8.2.80.0050.00317.97
8.2.70.0000.00917.88
8.2.60.0050.00317.93
8.2.50.0060.00318.07
8.2.40.0060.00319.34
8.2.30.0000.00722.42
8.2.20.0040.00417.85
8.2.10.0080.00018.16
8.2.00.0000.00818.21
8.1.280.0080.00825.92
8.1.270.0070.01123.79
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0040.00422.66
8.1.230.0060.00617.66
8.1.220.0030.00617.74
8.1.210.0050.00318.77
8.1.200.0060.00317.48
8.1.190.0040.00417.35
8.1.180.0000.00818.10
8.1.170.0040.00418.77
8.1.160.0000.00722.07
8.1.150.0030.00619.00
8.1.140.0040.00417.66
8.1.130.0050.00217.75
8.1.120.0030.00517.58
8.1.110.0040.00417.59
8.1.100.0000.00817.47
8.1.90.0000.00717.63
8.1.80.0050.00317.59
8.1.70.0030.00317.64
8.1.60.0030.00617.64
8.1.50.0040.00417.67
8.1.40.0000.00817.60
8.1.30.0000.00817.79
8.1.20.0000.00717.80
8.1.10.0030.00617.71
8.1.00.0040.00417.65
8.0.300.0040.00418.77
8.0.290.0060.00317.00
8.0.280.0040.00418.49
8.0.270.0040.00417.31
8.0.260.0030.00317.36
8.0.250.0050.00317.11
8.0.240.0000.00717.20
8.0.230.0040.00417.10
8.0.220.0040.00417.10
8.0.210.0040.00417.15
8.0.200.0080.00017.14
8.0.190.0060.00617.07
8.0.180.0030.00417.11
8.0.170.0050.00316.97
8.0.160.0040.00416.96
8.0.150.0000.00717.02
8.0.140.0000.00716.97
8.0.130.0090.00013.58
8.0.120.0040.00416.99
8.0.110.0040.00416.96
8.0.100.0040.00417.20
8.0.90.0030.00517.18
8.0.80.0060.01017.04
8.0.70.0000.00716.91
8.0.60.0040.00417.15
8.0.50.0000.00716.99
8.0.30.0110.01117.35
8.0.20.0110.00917.40
8.0.10.0040.00417.13
8.0.00.0090.00816.90
7.4.330.0020.00215.08
7.4.320.0060.00016.64
7.4.300.0070.00016.74
7.4.290.0030.00316.64
7.4.280.0060.00316.86
7.4.270.0030.00316.77
7.4.260.0000.00716.75
7.4.250.0000.00716.80
7.4.240.0020.00516.79
7.4.230.0000.00716.54
7.4.220.0110.00716.80
7.4.210.0070.01316.77
7.4.200.0030.00316.76
7.4.160.0070.01016.81
7.4.150.0060.01317.40
7.4.140.0140.00717.86
7.4.130.0100.01416.62
7.4.120.0070.01316.77
7.4.110.0040.01416.80
7.4.100.0180.00616.90
7.4.90.0140.00316.84
7.4.80.0100.00719.39
7.4.70.0090.01216.66
7.4.60.0160.00016.69
7.4.50.0030.00616.73
7.4.40.0170.00716.60
7.4.30.0120.00616.73
7.4.10.0140.00314.99
7.4.00.0060.01115.24
7.3.330.0030.00313.36
7.3.320.0000.00613.32
7.3.310.0070.00016.36
7.3.300.0040.00416.34
7.3.290.0070.01016.43
7.3.280.0090.00916.48
7.3.270.0080.01617.40
7.3.260.0140.00316.70
7.3.250.0100.00916.63
7.3.240.0120.00616.81
7.3.230.0060.01216.59
7.3.210.0100.01016.66
7.3.200.0100.00716.71
7.3.190.0100.00616.71
7.3.180.0110.00616.80
7.3.170.0040.01416.50
7.3.160.0040.01816.70
7.3.130.0070.00715.03
7.3.120.0080.00815.11
7.3.110.0130.00614.97
7.3.100.0090.00914.92
7.3.90.0110.00414.94
7.3.80.0000.01614.92
7.3.70.0070.00415.12
7.3.60.0040.01114.93
7.3.50.0040.00714.75
7.3.40.0110.00314.98
7.3.30.0070.00714.91
7.3.20.0120.00316.82
7.3.10.0030.01117.05
7.3.00.0040.01116.71
7.2.330.0160.00316.75
7.2.320.0100.00916.75
7.2.310.0070.01716.75
7.2.300.0000.01916.93
7.2.290.0160.00316.84
7.2.260.0080.01015.26
7.2.250.0100.01015.29
7.2.240.0070.01015.26
7.2.230.0070.01015.24
7.2.220.0070.00415.18
7.2.210.0060.00915.03
7.2.200.0070.00415.22
7.2.190.0030.01215.31
7.2.180.0000.00915.24
7.2.170.0120.00615.20
7.2.160.0000.01615.16
7.2.150.0000.01017.16
7.2.140.0030.00717.05
7.2.130.0000.01817.02
7.2.120.0030.01017.05
7.2.110.0070.00717.16
7.2.100.0150.00317.13
7.2.90.0060.00616.94
7.2.80.0030.01017.16
7.2.70.0060.00917.07
7.2.60.0060.00616.92
7.2.50.0060.01017.01
7.2.40.0040.00817.15
7.2.30.0030.00716.78
7.2.20.0030.00717.00
7.2.10.0000.01417.02
7.2.00.0020.01118.31
7.1.330.0030.01215.87
7.1.320.0070.00716.12
7.1.310.0060.00915.90
7.1.300.0000.01215.60
7.1.290.0060.00615.91
7.1.280.0100.00016.08
7.1.270.0000.01115.96
7.1.260.0130.00316.04
7.1.250.0030.01316.14
7.1.240.0000.00915.80
7.1.230.0070.00715.91
7.1.220.0070.01116.16
7.1.210.0050.00516.00
7.1.200.0030.00716.02
7.1.190.0040.00716.09
7.1.180.0060.00615.63
7.1.170.0080.00816.17
7.1.160.0080.00416.12
7.1.150.0070.00716.16
7.1.140.0000.01416.08
7.1.130.0090.00616.10
7.1.120.0110.00016.01
7.1.110.0060.00915.79
7.1.100.0060.00517.24
7.1.90.0060.01016.05
7.1.80.0040.01015.79
7.1.70.0030.00616.65
7.1.60.0080.00917.53
7.1.50.0070.00416.59
7.1.40.0000.01015.82
7.1.30.0070.00315.96
7.1.20.0000.01015.71
7.1.10.0040.00816.06
7.1.00.0070.03819.03
7.0.330.0090.00915.46
7.0.320.0040.01415.75
7.0.310.0050.00815.26
7.0.300.0060.00615.65
7.0.290.0060.00915.32
7.0.280.0030.01015.47
7.0.270.0030.00715.36
7.0.260.0030.00715.23
7.0.250.0050.00515.80
7.0.240.0030.00615.73
7.0.230.0060.00615.52
7.0.220.0040.01115.63
7.0.210.0060.00915.48
7.0.200.0000.00816.29
7.0.190.0100.00315.75
7.0.180.0070.00715.72
7.0.170.0070.00315.55
7.0.160.0030.00715.78
7.0.150.0030.00715.50
7.0.140.0070.00315.77
7.0.130.0050.00515.44
7.0.120.0050.00515.78
7.0.110.0080.00415.60
7.0.100.0100.00015.80
7.0.90.0080.00015.50
7.0.80.0030.01115.39
7.0.70.0040.00715.56
7.0.60.0050.04717.70
7.0.50.0090.04216.85
7.0.40.0070.04316.70
7.0.30.0110.02216.82
7.0.20.0150.02216.65
7.0.10.0070.04216.72
7.0.00.0090.04116.63
5.6.400.0130.00614.69
5.6.390.0070.00714.75
5.6.380.0030.01014.56
5.6.370.0090.00614.10
5.6.360.0080.00414.57
5.6.350.0070.00414.78
5.6.340.0090.00614.45
5.6.330.0090.00014.58
5.6.320.0030.00714.18
5.6.310.0070.01014.51
5.6.300.0040.00814.86
5.6.290.0000.00914.98
5.6.280.0080.00414.19
5.6.270.0000.01114.71
5.6.260.0080.00414.64
5.6.250.0070.00314.84
5.6.240.0080.00414.56
5.6.230.0040.01114.68
5.6.220.0090.00614.20
5.6.210.0050.04317.50
5.6.200.0050.04916.35
5.6.190.0080.03717.44
5.6.180.0150.03317.59
5.6.170.0180.02717.57
5.6.160.0070.04717.45
5.6.150.0080.04216.37
5.6.140.0080.04116.28
5.6.130.0070.04316.22
5.6.120.0070.04917.60
5.6.110.0050.04617.80
5.6.100.0080.04017.81
5.6.90.0080.04017.71
5.6.80.0050.03017.43
5.6.70.0120.00314.22
5.6.60.0060.00314.45
5.6.50.0030.00614.59
5.6.40.0000.01414.29
5.6.30.0070.00714.47
5.6.20.0040.00414.54
5.6.10.0060.00614.43
5.6.00.0060.00614.48
5.5.380.0030.00614.24
5.5.370.0100.00314.86
5.5.360.0060.00614.08
5.5.350.0040.02617.56
5.5.340.0030.04716.21
5.5.330.0030.05017.20
5.5.320.1810.02317.23
5.5.310.0100.02917.27
5.5.300.0000.02716.41
5.5.290.0060.04116.14
5.5.280.0070.03217.73
5.5.270.0020.03817.64
5.5.260.0050.02917.61
5.5.250.0060.02217.69
5.5.240.0030.03517.15
5.5.230.0040.01114.52
5.5.220.0080.00014.14
5.5.210.0060.00914.31
5.5.200.0100.00714.24
5.5.190.0060.00614.40
5.5.180.0060.00614.37
5.5.170.0000.00914.41
5.5.160.0120.00314.63
5.5.150.0090.00314.71
5.5.140.0060.00614.26
5.5.130.0030.00614.41
5.5.120.0100.00614.33
5.5.110.0070.00714.23
5.5.100.0000.01214.18
5.5.90.0040.00814.31
5.5.80.0070.00714.46
5.5.70.0070.00714.55
5.5.60.0120.00014.34
5.5.50.0060.00614.40
5.5.40.0000.01113.98
5.5.30.0030.00614.09
5.5.20.0070.00714.00
5.5.10.0040.00414.19
5.5.00.0000.00814.20
5.4.450.0370.03715.85
5.4.440.0470.02215.85
5.4.430.0430.02615.91
5.4.420.0390.03415.94
5.4.410.0340.03615.83
5.4.400.0430.02515.70
5.4.390.0420.02815.69
5.4.380.0370.02815.64
5.4.370.0350.03215.76
5.4.360.0430.04415.75
5.4.350.0400.02515.70
5.4.340.0400.02615.63
5.4.330.0000.00812.31
5.4.320.0330.03715.70
5.4.310.0330.03115.78
5.4.300.0380.02715.75
5.4.290.0420.02615.78
5.4.280.0350.03615.58
5.4.270.0350.03115.73
5.4.260.0340.03315.78
5.4.250.0360.02915.55
5.4.240.0380.03215.74
5.4.230.0350.03015.75
5.4.220.0400.02715.55
5.4.210.0380.03015.68
5.4.200.0370.02815.62
5.4.190.0410.02915.73
5.4.180.0390.02815.69
5.4.170.0410.02615.57
5.4.160.0330.03015.74
5.4.150.0440.02815.77
5.4.140.0360.02914.38
5.4.130.0380.02514.29
5.4.120.0380.02814.37
5.4.110.0360.02914.29
5.4.100.0370.02914.39
5.4.90.0330.03414.37
5.4.80.0400.02714.37
5.4.70.0130.02014.35
5.4.60.0080.03514.26
5.4.50.0060.03514.25
5.4.40.0170.03414.18
5.4.30.0150.02014.38
5.4.20.0080.02414.24
5.4.10.0040.00712.31
5.4.00.0030.01012.31

preferences:
70.9 ms | 401 KiB | 5 Q