3v4l.org

run code in 300+ PHP versions simultaneously
<?php date_default_timezone_set('America/New_York'); $date = new DateTime(); echo json_encode($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)
8.3.60.0110.00316.60
8.3.50.0160.00322.11
8.3.40.0090.00619.17
8.3.30.0120.00318.92
8.3.20.0050.00220.31
8.3.10.0000.00821.90
8.3.00.0030.00619.05
8.2.180.0090.01218.66
8.2.170.0100.00722.96
8.2.160.0090.00620.39
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0050.00326.16
8.2.120.0040.00420.54
8.2.110.0070.00322.28
8.2.100.0120.00019.76
8.2.90.0040.00419.18
8.2.80.0000.00817.97
8.2.70.0090.00017.86
8.2.60.0050.00318.16
8.2.50.0050.00518.07
8.2.40.0030.00620.00
8.2.30.0050.00318.29
8.2.20.0050.00317.91
8.2.10.0000.00717.98
8.2.00.0040.00417.92
8.1.280.0070.00725.92
8.1.270.0040.00423.54
8.1.260.0000.00826.35
8.1.250.0030.00528.09
8.1.240.0060.00323.64
8.1.230.0080.00318.94
8.1.220.0000.00817.79
8.1.210.0040.00418.77
8.1.200.0060.00317.47
8.1.190.0030.00617.50
8.1.180.0030.00518.10
8.1.170.0000.01118.70
8.1.160.0030.00622.06
8.1.150.0070.00018.78
8.1.140.0070.00017.61
8.1.130.0030.00417.98
8.1.120.0040.00417.77
8.1.110.0040.00417.66
8.1.100.0070.00017.59
8.1.90.0040.00417.58
8.1.80.0000.00817.58
8.1.70.0040.00417.64
8.1.60.0040.00417.74
8.1.50.0060.00317.64
8.1.40.0000.00817.64
8.1.30.0000.00817.71
8.1.20.0040.00417.74
8.1.10.0050.00317.68
8.1.00.0050.00317.61
8.0.300.0000.00818.77
8.0.290.0000.00717.16
8.0.280.0040.00418.46
8.0.270.0030.00317.42
8.0.260.0000.00717.26
8.0.250.0000.00717.13
8.0.240.0070.00317.26
8.0.230.0000.00817.13
8.0.220.0070.00017.13
8.0.210.0070.00017.10
8.0.200.0030.00317.20
8.0.190.0040.00417.25
8.0.180.0000.00817.21
8.0.170.0060.00317.08
8.0.160.0000.00717.23
8.0.150.0000.00717.02
8.0.140.0000.00717.02
8.0.130.0030.00313.60
8.0.120.0000.00817.11
8.0.110.0040.00417.17
8.0.100.0040.00417.17
8.0.90.0050.00317.24
8.0.80.0070.01617.11
8.0.70.0020.00517.12
8.0.60.0000.00817.03
8.0.50.0020.00517.15
8.0.30.0140.00917.20
8.0.20.0100.01017.51
8.0.10.0040.00417.17
8.0.00.0080.01117.18
7.4.330.0060.00015.07
7.4.320.0060.00016.56
7.4.300.0000.00616.74
7.4.290.0000.00716.51
7.4.280.0030.00316.55
7.4.270.0080.00016.68
7.4.260.0030.00316.59
7.4.250.0050.00316.53
7.4.240.0010.00616.74
7.4.230.0030.00316.48
7.4.220.0090.00916.63
7.4.210.0080.00616.68
7.4.200.0000.00716.66
7.4.190.0000.00716.85
7.4.160.0060.00916.76
7.4.150.0040.01517.40
7.4.140.0090.01017.86
7.4.130.0100.01016.65
7.4.120.0090.00916.63
7.4.110.0070.01016.81
7.4.100.0090.00916.70
7.4.90.0090.00916.82
7.4.80.0150.00619.39
7.4.70.0070.01016.73
7.4.60.0140.00716.64
7.4.50.0040.00416.65
7.4.40.0070.01016.63
7.4.30.0050.01016.76
7.4.00.0030.01215.42
7.3.330.0030.00313.45
7.3.320.0030.00313.47
7.3.310.0070.00016.56
7.3.300.0030.00416.55
7.3.290.0150.00316.54
7.3.280.0100.00816.50
7.3.270.0090.00917.40
7.3.260.0110.01116.71
7.3.250.0140.00516.64
7.3.240.0070.01016.58
7.3.230.0090.00916.58
7.3.210.0100.00716.66
7.3.200.0120.01819.39
7.3.190.0100.00716.58
7.3.180.0090.00616.86
7.3.170.0040.01216.78
7.3.160.0090.00916.61
7.3.120.0030.01015.28
7.2.330.0100.00716.73
7.2.320.0120.00617.01
7.2.310.0110.00616.71
7.2.300.0070.01416.84
7.2.290.0070.01616.90
7.2.60.0000.01517.00
7.2.00.0000.00819.50
7.1.200.0060.00615.71
7.1.100.0060.00618.34
7.1.70.0030.00617.39
7.1.60.0140.01019.46
7.1.50.0190.01317.04
7.1.00.0070.07322.33
7.0.200.0070.00317.11
7.0.140.0100.06321.97
7.0.90.0170.08019.93
7.0.80.0230.07020.03
7.0.70.0170.07319.99
7.0.60.0130.08319.93
7.0.50.0170.08720.32
7.0.40.0170.07320.08
7.0.30.0030.09020.15
7.0.20.0100.05720.12
7.0.10.0070.07020.12
7.0.00.0100.05020.13
5.6.280.0070.06720.87
5.6.240.0130.08020.52
5.6.230.0030.07020.70
5.6.220.0030.06320.65
5.6.210.0100.08020.69
5.6.200.0130.04021.18
5.6.190.0030.08321.03
5.6.180.0130.06021.14
5.6.170.0030.05021.12
5.6.160.0100.07021.09
5.6.150.0030.06321.06
5.6.140.0070.04320.96
5.6.130.0070.04321.03
5.6.120.0100.08020.94
5.6.110.0030.07720.96
5.6.100.0100.08320.93
5.6.90.0130.06721.10
5.6.80.0100.04720.35
5.6.70.0100.07320.43
5.6.60.0070.05720.40
5.6.50.0030.08020.47
5.6.40.0100.06720.44
5.6.30.0130.07320.38
5.6.20.0030.05020.39
5.6.10.0130.06320.31
5.6.00.0000.08320.30
5.5.380.0170.06720.46
5.5.370.0100.06320.40
5.5.360.0100.06720.41
5.5.350.0030.04320.46
5.5.340.0030.08720.89
5.5.330.0170.07320.93
5.5.320.0130.06720.80
5.5.310.0070.05020.80
5.5.300.0100.06720.93
5.5.290.0030.07320.84
5.5.280.0030.07320.84
5.5.270.0070.04720.88
5.5.260.0130.08020.79
5.5.250.0030.05720.68
5.5.240.0030.08320.03
5.5.230.0030.08320.29
5.5.220.0100.08020.14
5.5.210.0000.05020.23
5.5.200.0100.07020.18
5.5.190.0170.07020.22
5.5.180.0030.07720.21
5.5.160.0100.06720.21
5.5.150.0070.04720.26
5.5.140.0030.07720.24
5.5.130.0200.05320.18
5.5.120.0030.09020.16
5.5.110.0130.07320.18
5.5.100.0000.05020.17
5.5.90.0170.07020.15
5.5.80.0070.07320.10
5.5.70.0030.08320.15
5.5.60.0070.07320.14
5.5.50.0070.05020.15
5.5.40.0070.06319.97
5.5.30.0170.06720.06
5.5.20.0070.05320.12
5.5.10.0100.07019.99
5.5.00.0170.09320.08
5.4.450.0070.06319.23
5.4.440.0030.06319.43
5.4.430.0000.07719.55
5.4.420.0070.05319.36
5.4.410.0030.04719.07
5.4.400.0030.07718.85
5.4.390.0130.04019.23
5.4.380.0100.05719.12
5.4.370.0070.06718.84
5.4.360.0030.07719.23
5.4.350.0000.07319.20
5.4.340.0030.07019.23
5.4.320.0130.07019.05
5.4.310.0070.07319.04
5.4.300.0070.07019.20
5.4.290.0100.04019.17
5.4.280.0000.08318.90
5.4.270.0030.07319.17
5.4.260.0030.05319.02
5.4.250.0170.05319.02
5.4.240.0070.04718.98
5.4.230.0100.05019.04
5.4.220.0100.08019.17
5.4.210.0130.07319.24
5.4.200.0030.04719.12
5.4.190.0100.07319.02
5.4.180.0070.07319.03
5.4.170.0030.08719.04
5.4.160.0030.07018.93
5.4.150.0030.03719.06
5.4.140.0000.03716.26
5.4.130.0070.03016.21
5.4.120.0030.04016.34
5.4.110.0070.04016.55
5.4.100.0030.03716.52
5.4.90.0070.03716.52
5.4.80.0030.06316.31
5.4.70.0070.04016.57
5.4.60.0030.03316.44
5.4.50.0100.03716.48
5.4.40.0070.05716.35
5.4.30.0070.03316.30
5.4.20.0070.03316.36
5.4.10.0130.03016.29
5.4.00.0030.03715.85
5.3.290.0030.07314.68
5.3.280.0070.07314.65
5.3.270.0100.05314.54
5.3.260.0070.07014.58
5.3.250.0070.06714.64
5.3.240.0030.03714.73
5.3.230.0100.03014.59
5.3.220.0130.03714.56
5.3.210.0100.03314.65
5.3.200.0000.04014.57
5.3.190.0000.04014.55
5.3.180.0070.03314.69
5.3.170.0070.04014.56
5.3.160.0030.03314.66
5.3.150.0070.06714.50
5.3.140.0100.03314.52
5.3.130.0000.04714.48
5.3.120.0000.05014.65
5.3.110.0070.03714.66
5.3.100.0030.03714.07
5.3.90.0030.04714.05
5.3.80.0000.04014.05
5.3.70.0000.04014.03
5.3.60.0030.03713.89
5.3.50.0100.03014.01
5.3.40.0000.04314.02
5.3.30.0030.03314.04
5.3.20.0100.02713.75
5.3.10.0000.03713.67
5.3.00.0070.03313.63
5.2.170.0030.03011.04
5.2.160.0030.02711.25
5.2.150.0000.03011.28
5.2.140.0030.03011.19
5.2.130.0000.03011.16
5.2.120.0000.03010.98
5.2.110.0000.03011.12
5.2.100.0030.03011.00
5.2.90.0030.02711.16
5.2.80.0030.03011.08
5.2.70.0030.03311.11
5.2.60.0000.03011.11
5.2.50.0000.03011.13
5.2.40.0070.02011.01
5.2.30.0000.03310.96
5.2.20.0000.02711.03
5.2.10.0000.03010.77
5.2.00.0030.03710.73
5.1.60.0000.0279.84
5.1.50.0030.02310.06
5.1.40.0030.0279.83
5.1.30.0000.03010.40
5.1.20.0000.02710.41
5.1.10.0070.04710.14
5.1.00.0000.03710.16
5.0.50.0030.0208.55
5.0.40.0070.0178.48
5.0.30.0000.0308.06
5.0.20.0030.0178.28
5.0.10.0000.0208.06
5.0.00.0030.0638.01
4.4.90.0000.0177.36
4.4.80.0000.0177.36
4.4.70.0030.0137.36
4.4.60.0000.0277.36
4.4.50.0000.0207.36
4.4.40.0000.0237.36
4.4.30.0030.0137.36
4.4.20.0000.0337.36
4.4.10.0030.0177.36
4.4.00.0000.0377.36
4.3.110.0070.0107.36
4.3.100.0000.0177.36
4.3.90.0000.0177.36
4.3.80.0030.0477.36
4.3.70.0070.0277.36
4.3.60.0070.0307.36
4.3.50.0000.0237.36
4.3.40.0000.0507.36
4.3.30.0030.0177.36
4.3.20.0000.0277.36
4.3.10.0000.0207.36
4.3.00.0000.0237.36

preferences:
43.92 ms | 401 KiB | 5 Q