3v4l.org

run code in 300+ PHP versions simultaneously
<?php date_default_timezone_set('America/New_York'); $date = new DateTime(); $date::jsonSerialize(); echo json_encode($date,JSON_FORCE_OBJECT); var_dump(json_last_error(), json_last_error_msg()); function isSerializable( $var ) { try { serialize( $var ); return TRUE; } catch( Exception $e ) { return FALSE; } } var_dump( isSerializable( array() ) ); // bool(true) var_dump( isSerializable( function() {} ) ); // bool(false) var_dump( isSerializable( array( function() {} ) ) );

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)
8.3.60.0140.00016.63
8.3.50.0070.01221.98
8.3.40.0070.00719.02
8.3.30.0140.00018.96
8.3.20.0050.00320.37
8.3.10.0040.00422.08
8.3.00.0080.00019.04
8.2.180.0140.00718.43
8.2.170.0110.00422.96
8.2.160.0070.00720.39
8.2.150.0040.00424.18
8.2.140.0030.00624.66
8.2.130.0000.00726.16
8.2.120.0040.00420.56
8.2.110.0060.00319.33
8.2.100.0040.00717.97
8.2.90.0030.00519.08
8.2.80.0090.00017.97
8.2.70.0050.00317.63
8.2.60.0040.00418.04
8.2.50.0030.00618.07
8.2.40.0030.00519.77
8.2.30.0040.00418.15
8.2.20.0050.00317.79
8.2.10.0000.00818.08
8.2.00.0040.00417.82
8.1.280.0030.01725.92
8.1.270.0040.00423.68
8.1.260.0040.00426.35
8.1.250.0030.00528.09
8.1.240.0030.00621.29
8.1.230.0070.00717.66
8.1.220.0030.00617.74
8.1.210.0050.00518.77
8.1.200.0070.00317.38
8.1.190.0000.00817.35
8.1.180.0040.00418.10
8.1.170.0030.00818.63
8.1.160.0000.00721.93
8.1.150.0000.00818.72
8.1.140.0030.00517.53
8.1.130.0000.00817.89
8.1.120.0030.00417.74
8.1.110.0040.00417.59
8.1.100.0030.00517.69
8.1.90.0000.00717.63
8.1.80.0000.00717.51
8.1.70.0000.00717.59
8.1.60.0050.00217.66
8.1.50.0000.00817.48
8.1.40.0000.00717.68
8.1.30.0040.00417.77
8.1.20.0020.00517.82
8.1.10.0050.00317.75
8.1.00.0000.00817.66
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.35
8.0.270.0000.00717.40
8.0.260.0030.00317.21
8.0.250.0000.00717.11
8.0.240.0060.00317.20
8.0.230.0040.00417.18
8.0.220.0000.00717.18
8.0.210.0070.00017.07
8.0.200.0070.00017.18
8.0.190.0030.00617.20
8.0.180.0040.00417.15
8.0.170.0000.00817.05
8.0.160.0070.00017.18
8.0.150.0000.00717.00
8.0.140.0030.00516.99
8.0.130.0030.00313.47
8.0.120.0080.00017.00
8.0.110.0070.00017.04
8.0.100.0080.00016.97
8.0.90.0050.00317.05
8.0.80.0040.01817.04
8.0.70.0040.00417.15
8.0.60.0000.00717.10
8.0.50.0000.00717.02
8.0.30.0140.00517.27
8.0.20.0120.01217.40
8.0.10.0040.00417.27
8.0.00.0090.00816.89
7.4.330.0000.00515.22
7.4.320.0060.00016.46
7.4.300.0000.00616.75
7.4.290.0040.00416.68
7.4.280.0030.00516.80
7.4.270.0030.00316.79
7.4.260.0030.00316.62
7.4.250.0070.00016.71
7.4.240.0020.00616.79
7.4.230.0000.00716.69
7.4.220.0060.01316.62
7.4.210.0060.00916.71
7.4.200.0070.00016.83
7.4.190.0000.00716.57
7.4.160.0030.01316.47
7.4.150.0130.00417.40
7.4.140.0110.00717.86
7.4.130.0110.00616.60
7.4.120.0090.00916.71
7.4.110.0090.00616.71
7.4.100.0140.00616.71
7.4.90.0090.01016.65
7.4.80.0040.01419.39
7.4.70.0030.01616.67
7.4.60.0100.00716.70
7.4.50.0050.00316.50
7.4.40.0110.00816.71
7.4.30.0030.01316.71
7.4.00.0130.00315.26
7.3.330.0000.00613.55
7.3.320.0000.00513.45
7.3.310.0000.00716.45
7.3.300.0050.00216.59
7.3.290.0120.00616.57
7.3.280.0120.00716.60
7.3.270.0060.01017.40
7.3.260.0180.00616.33
7.3.250.0050.01116.51
7.3.240.0070.01016.85
7.3.230.0070.01016.49
7.3.210.0110.00716.45
7.3.200.0110.00719.39
7.3.190.0070.01416.76
7.3.180.0090.00616.79
7.3.170.0140.00316.59
7.3.160.0130.00716.62
7.3.120.0080.00814.76
7.2.330.0120.00616.86
7.2.320.0160.00816.63
7.2.310.0160.00616.84
7.2.300.0000.01616.53
7.2.290.0130.00516.56
7.2.110.0070.01016.57
7.2.80.0100.00716.77
7.2.60.0030.00616.96
7.2.00.0030.01219.28
7.1.200.0030.00915.80
7.1.100.0060.00918.25
7.1.70.0000.00717.32
7.1.60.0070.01719.46
7.1.50.0150.01517.13
7.1.00.0000.08022.45
7.0.200.0000.00717.06
7.0.140.0070.07022.18
7.0.90.0000.05320.00
7.0.80.0100.07319.96
7.0.70.0070.06319.87
7.0.60.0070.08719.94
7.0.50.0130.07320.27
7.0.40.0070.08020.08
7.0.30.0130.07720.14
7.0.20.0100.08320.00
7.0.10.0100.08320.08
7.0.00.0100.07320.14
5.6.280.0000.07321.00
5.6.240.0100.07320.69
5.6.230.0070.07320.68
5.6.220.0070.08020.74
5.6.210.0070.06720.69
5.6.200.0000.07021.11
5.6.190.0100.07721.01
5.6.180.0030.08320.97
5.6.170.0130.08020.96
5.6.160.0030.04721.02
5.6.150.0030.07321.17
5.6.140.0130.07321.05
5.6.130.0070.05020.95
5.6.120.0030.08721.08
5.6.110.0130.05321.09
5.6.100.0030.08720.93
5.6.90.0130.08020.88
5.6.80.0070.08020.53
5.6.70.0000.07320.55
5.6.60.0070.05020.40
5.6.50.0100.04020.48
5.6.40.0070.08020.40
5.6.30.0100.07320.48
5.6.20.0070.07720.42
5.6.10.0070.04320.42
5.6.00.0100.04720.30
5.5.380.0170.07320.41
5.5.370.0070.05020.45
5.5.360.0070.04720.41
5.5.350.0130.07320.34
5.5.340.0100.08720.83
5.5.330.0130.07320.87
5.5.320.0070.04020.88
5.5.310.0030.05020.83
5.5.300.0030.05720.88
5.5.290.0100.06320.81
5.5.280.0000.08020.76
5.5.270.0070.08320.82
5.5.260.0030.08720.63
5.5.250.0200.06720.71
5.5.240.0100.04020.03
5.5.230.0170.07320.27
5.5.220.0000.08720.28
5.5.210.0070.08020.27
5.5.200.0100.07720.26
5.5.190.0070.06020.24
5.5.180.0070.08020.09
5.5.160.0030.08320.19
5.5.150.0030.04720.21
5.5.140.0130.05019.97
5.5.130.0100.04320.22
5.5.120.0030.08320.21
5.5.110.0170.03720.27
5.5.100.0200.03319.96
5.5.90.0030.04719.92
5.5.80.0200.07020.02
5.5.70.0070.07719.97
5.5.60.0130.04320.06
5.5.50.0130.07719.93
5.5.40.0030.08020.09
5.5.30.0170.06720.04
5.5.20.0070.04720.11
5.5.10.0030.07020.00
5.5.00.0000.04720.05
5.4.450.0100.07719.46
5.4.440.0130.07319.42
5.4.430.0070.04019.32
5.4.420.0130.03719.27
5.4.410.0070.04719.24
5.4.400.0100.04018.91
5.4.390.0130.07719.05
5.4.380.0130.06019.13
5.4.370.0070.07319.09
5.4.360.0030.07719.16
5.4.350.0070.08019.04
5.4.340.0000.07019.21
5.4.320.0130.07319.23
5.4.310.0070.06319.13
5.4.300.0070.08018.94
5.4.290.0000.05019.03
5.4.280.0030.04719.14
5.4.270.0100.06719.12
5.4.260.0100.07319.13
5.4.250.0130.07318.84
5.4.240.0130.04019.08
5.4.230.0100.06019.22
5.4.220.0170.06719.11
5.4.210.0070.04319.02
5.4.200.0030.05719.06
5.4.190.0100.04019.15
5.4.180.0070.03719.12
5.4.170.0000.05719.03
5.4.160.0030.04018.86
5.4.150.0030.03718.86
5.4.140.0070.03316.42
5.4.130.0030.03316.45
5.4.120.0100.03016.43
5.4.110.0030.03716.53
5.4.100.0030.03716.57
5.4.90.0000.04016.44
5.4.80.0030.05016.50
5.4.70.0100.02716.40
5.4.60.0000.03716.35
5.4.50.0030.03316.44
5.4.40.0070.07316.55
5.4.30.0030.03716.43
5.4.20.0070.03316.29
5.4.10.0100.03716.36
5.4.00.0000.03715.83
5.3.290.0070.08014.72
5.3.280.0000.07314.70
5.3.270.0200.03014.72
5.3.260.0100.03714.64
5.3.250.0030.03714.63
5.3.240.0030.03714.70
5.3.230.0070.03314.63
5.3.220.0000.04714.50
5.3.210.0000.03714.71
5.3.200.0070.03314.62
5.3.190.0000.04014.63
5.3.180.0000.04014.70
5.3.170.0030.03714.69
5.3.160.0030.03714.52
5.3.150.0030.03314.54
5.3.140.0030.04314.56
5.3.130.0070.04014.58
5.3.120.0170.05314.67
5.3.110.0000.04014.61
5.3.100.0030.03313.96
5.3.90.0070.03314.07
5.3.80.0030.03314.13
5.3.70.0030.03714.08
5.3.60.0030.03714.11
5.3.50.0000.05014.05
5.3.40.0000.06714.06
5.3.30.0000.04314.03
5.3.20.0070.03013.75
5.3.10.0000.03713.56
5.3.00.0030.03313.66
5.2.170.0070.02311.13
5.2.160.0000.03711.12
5.2.150.0100.02011.05
5.2.140.0000.03311.13
5.2.130.0030.06311.05
5.2.120.0170.04011.14
5.2.110.0030.02711.09
5.2.100.0030.02711.10
5.2.90.0000.03010.92
5.2.80.0030.03010.91
5.2.70.0000.03010.89
5.2.60.0000.03011.05
5.2.50.0000.03011.07
5.2.40.0000.03010.86
5.2.30.0000.03010.96
5.2.20.0000.03010.80
5.2.10.0070.02310.87
5.2.00.0000.03010.66
5.1.60.0000.02310.04
5.1.50.0030.0239.98
5.1.40.0000.02710.02
5.1.30.0000.02710.36
5.1.20.0000.04010.25
5.1.10.0000.03010.09
5.1.00.0000.02710.14
5.0.50.0000.0478.57
5.0.40.0000.0438.39
5.0.30.0030.0638.25
5.0.20.0030.0208.22
5.0.10.0000.0408.25
5.0.00.0030.0338.14
4.4.90.0030.0137.60
4.4.80.0000.0177.60
4.4.70.0000.0177.60
4.4.60.0000.0177.60
4.4.50.0030.0177.60
4.4.40.0030.0237.60
4.4.30.0070.0107.60
4.4.20.0030.0137.60
4.4.10.0030.0237.60
4.4.00.0070.0177.60
4.3.110.0000.0337.60
4.3.100.0030.0137.60
4.3.90.0030.0337.60
4.3.80.0030.0277.60
4.3.70.0070.0337.60
4.3.60.0030.0277.60
4.3.50.0030.0207.60
4.3.40.0030.0507.60
4.3.30.0030.0377.60
4.3.20.0000.0407.60
4.3.10.0030.0277.60
4.3.00.0000.0337.60

preferences:
54.41 ms | 400 KiB | 5 Q