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( DateTime() ) ); // bool(true)

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)
8.3.60.0090.00616.88
8.3.50.0060.00822.06
8.3.40.0090.00919.10
8.3.30.0150.00019.26
8.3.20.0070.00020.38
8.3.10.0080.00021.69
8.3.00.0040.00419.19
8.2.180.0060.00916.63
8.2.170.0150.00022.96
8.2.160.0130.00720.27
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0040.00420.38
8.2.110.0090.00022.33
8.2.100.0040.00817.84
8.2.90.0040.00419.23
8.2.80.0050.00317.97
8.2.70.0080.00017.75
8.2.60.0080.00018.16
8.2.50.0030.00718.07
8.2.40.0090.00020.07
8.2.30.0000.00818.24
8.2.20.0060.00317.82
8.2.10.0050.00217.95
8.2.00.0050.00317.88
8.1.280.0140.00725.92
8.1.270.0040.00423.82
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0040.00423.71
8.1.230.0080.00419.00
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0000.00917.25
8.1.190.0030.00617.47
8.1.180.0080.00018.10
8.1.170.0040.00718.57
8.1.160.0000.00822.03
8.1.150.0040.00418.76
8.1.140.0000.00817.60
8.1.130.0000.00817.78
8.1.120.0040.00417.70
8.1.110.0030.00517.62
8.1.100.0030.00517.48
8.1.90.0000.00717.52
8.1.80.0040.00417.64
8.1.70.0000.00717.57
8.1.60.0050.00517.73
8.1.50.0000.00817.57
8.1.40.0050.00217.73
8.1.30.0040.00417.82
8.1.20.0000.00817.71
8.1.10.0040.00417.75
8.1.00.0000.00817.52
8.0.300.0040.00418.77
8.0.290.0040.00417.18
8.0.280.0000.00818.57
8.0.270.0040.00417.32
8.0.260.0060.00017.33
8.0.250.0030.00317.18
8.0.240.0030.00617.20
8.0.230.0000.00817.04
8.0.220.0030.00316.98
8.0.210.0000.00716.99
8.0.200.0020.00517.04
8.0.190.0000.00817.07
8.0.180.0030.00617.15
8.0.170.0030.00617.09
8.0.160.0040.00417.04
8.0.150.0040.00417.10
8.0.140.0050.00217.01
8.0.130.0000.00513.39
8.0.120.0040.00417.02
8.0.110.0040.00417.06
8.0.100.0000.00817.02
8.0.90.0000.00816.91
8.0.80.0120.00917.09
8.0.70.0000.00717.12
8.0.60.0040.00416.96
8.0.50.0050.00317.11
8.0.30.0060.01217.16
8.0.20.0140.00517.40
8.0.10.0080.00017.20
8.0.00.0070.01117.02
7.4.330.0000.00515.00
7.4.320.0070.00016.43
7.4.300.0030.00316.76
7.4.290.0070.00016.63
7.4.280.0040.00416.63
7.4.270.0050.00216.64
7.4.260.0070.00016.69
7.4.250.0020.00516.57
7.4.240.0040.00416.63
7.4.230.0000.00816.84
7.4.220.0090.01616.76
7.4.210.0080.00916.70
7.4.200.0030.00316.43
7.4.190.0070.00016.89
7.4.160.0100.00716.80
7.4.150.0140.00717.40
7.4.140.0140.00317.86
7.4.130.0140.00716.73
7.4.120.0090.00816.71
7.4.110.0130.00316.75
7.4.100.0100.01316.73
7.4.90.0100.00716.85
7.4.80.0090.00919.39
7.4.70.0080.00816.79
7.4.60.0110.00616.74
7.4.50.0050.00316.54
7.4.40.0060.01116.53
7.4.30.0150.00016.59
7.4.00.0080.00815.36
7.3.330.0050.00013.33
7.3.320.0030.00313.50
7.3.310.0030.00316.55
7.3.300.0030.00316.55
7.3.290.0100.01016.41
7.3.280.0110.00716.48
7.3.270.0030.01317.40
7.3.260.0100.01416.38
7.3.250.0080.01116.59
7.3.240.0000.01716.74
7.3.230.0030.01416.67
7.3.210.0100.00716.58
7.3.200.0060.01219.39
7.3.190.0110.01116.65
7.3.180.0090.00916.57
7.3.170.0030.01216.52
7.3.160.0090.00616.52
7.3.120.0060.01215.02
7.2.330.0100.00616.54
7.2.320.0080.00816.56
7.2.310.0120.01216.88
7.2.300.0120.00416.45
7.2.290.0170.00316.94
7.2.60.0050.00917.08
7.2.00.0000.01219.65
7.1.200.0040.00815.95
7.1.100.0040.01118.50
7.1.70.0000.00717.46
7.1.60.0100.01319.46
7.1.50.0090.01916.79
7.1.00.0000.08022.28
7.0.200.0000.00717.15
7.0.140.0070.07021.99
7.0.110.0170.05019.95
7.0.100.0270.05020.10
7.0.90.0300.05019.97
7.0.80.0630.07019.93
7.0.70.0630.04319.94
7.0.60.0570.08320.04
7.0.50.0530.08020.25
7.0.40.0100.04720.20
7.0.30.0170.04320.16
7.0.20.0130.08020.05
7.0.10.0030.08320.19
7.0.00.0070.08019.91
5.6.280.0000.07720.82
5.6.250.0030.04020.67
5.6.240.0100.05720.69
5.6.230.0030.05320.68
5.6.220.0100.07320.61
5.6.210.0000.09020.69
5.6.200.0070.08721.30
5.6.190.0170.03721.03
5.6.180.0070.08321.11
5.6.170.0130.08021.19
5.6.160.0100.07720.96
5.6.150.0130.07321.09
5.6.140.0100.08321.02
5.6.130.0170.07721.14
5.6.120.0070.08721.21
5.6.110.0130.08020.94
5.6.100.0100.07720.98
5.6.90.0100.04721.25
5.6.80.0100.05720.66
5.6.70.0100.07720.45
5.6.60.0130.06020.52
5.6.50.0200.06020.53
5.6.40.0130.06720.31
5.6.30.0130.05320.44
5.6.20.0030.08320.34
5.6.10.0070.07720.49
5.6.00.0100.07320.37
5.5.380.0030.05320.54
5.5.370.0070.07720.57
5.5.360.0100.07720.56
5.5.350.0100.07020.45
5.5.340.0100.08020.99
5.5.330.0130.07320.95
5.5.320.0070.08020.97
5.5.310.0100.07720.90
5.5.300.0100.07720.95
5.5.290.0170.08020.99
5.5.280.0270.06721.04
5.5.270.0030.08721.03
5.5.260.0100.08020.89
5.5.250.0070.08020.80
5.5.240.0030.08020.29
5.5.230.0100.07720.25
5.5.220.0130.04020.36
5.5.210.0070.07720.31
5.5.200.0100.06720.06
5.5.190.0230.06020.15
5.5.180.0100.07320.37
5.5.160.0130.06720.37
5.5.150.0070.07020.21
5.5.140.0030.08720.19
5.5.130.0100.04020.25
5.5.120.0000.08020.27
5.5.110.0070.07720.21
5.5.100.0130.07020.02
5.5.90.0100.06020.25
5.5.80.0030.08319.98
5.5.70.0100.08019.96
5.5.60.0130.06020.27
5.5.50.0130.06320.09
5.5.40.0170.07020.07
5.5.30.0130.07720.13
5.5.20.0030.07720.14
5.5.10.0070.07320.16
5.5.00.0000.08719.93
5.4.450.0100.08019.31
5.4.440.0030.07719.57
5.4.430.0000.08319.33
5.4.420.0030.07319.43
5.4.410.0000.05319.17
5.4.400.0000.08019.37
5.4.390.0200.06319.18
5.4.380.0030.08719.24
5.4.370.0100.07019.02
5.4.360.0070.07319.02
5.4.350.0100.07719.14
5.4.340.0030.07719.23
5.4.320.0070.06019.18
5.4.310.0030.08319.24
5.4.300.0130.07018.91
5.4.290.0130.07019.00
5.4.280.0030.06719.03
5.4.270.0170.05019.00
5.4.260.0100.06319.16
5.4.250.0130.06718.98
5.4.240.0070.06019.16
5.4.230.0170.06319.17
5.4.220.0070.08018.99
5.4.210.0030.08018.97
5.4.200.0070.07019.00
5.4.190.0230.06319.03
5.4.180.0070.08019.02
5.4.170.0100.07719.17
5.4.160.0200.06718.95
5.4.150.0100.07718.99
5.4.140.0100.03016.59
5.4.130.0030.07016.30
5.4.120.0130.06716.52
5.4.110.0130.07016.52
5.4.100.0070.07016.46
5.4.90.0100.06316.65
5.4.80.0030.07316.30
5.4.70.0100.07016.49
5.4.60.0030.07016.48
5.4.50.0000.08316.33
5.4.40.0030.08016.49
5.4.30.0030.05316.32
5.4.20.0130.06016.40
5.4.10.0130.05716.48
5.4.00.0030.07315.91
5.3.290.0170.07014.68
5.3.280.0070.07314.61
5.3.270.0130.05314.62
5.3.260.0070.07314.56
5.3.250.0030.04314.46
5.3.240.0000.07714.61
5.3.230.0000.05714.61
5.3.220.0100.07314.64
5.3.210.0130.06314.65
5.3.200.0070.07314.56
5.3.190.0130.07014.60
5.3.180.0030.08314.69
5.3.170.0100.07014.69
5.3.160.0000.08314.61
5.3.150.0070.07014.59
5.3.140.0030.08014.69
5.3.130.0030.04714.58
5.3.120.0100.06314.63
5.3.110.0170.06714.58
5.3.100.0030.07714.27
5.3.90.0070.06014.05
5.3.80.0000.07314.05
5.3.70.0130.06014.02
5.3.60.0070.04014.07
5.3.50.0070.06014.04
5.3.40.0000.08013.98
5.3.30.0100.07014.13
5.3.20.0070.06713.72
5.3.10.0030.06713.72
5.3.00.0000.06713.72
5.2.170.0100.06011.14
5.2.160.0100.05311.16
5.2.150.0030.06011.20
5.2.140.0000.06011.24
5.2.130.0030.06011.16
5.2.120.0030.03711.10
5.2.110.0030.05711.10
5.2.100.0100.05311.11
5.2.90.0130.04011.23
5.2.80.0100.04311.32
5.2.70.0100.06011.07
5.2.60.0030.05711.18
5.2.50.0030.04311.16
5.2.40.0000.06710.99
5.2.30.0030.04711.10
5.2.20.0070.06310.94
5.2.10.0030.06010.99
5.2.00.0070.05710.67
5.1.60.0030.05710.15
5.1.50.0000.0579.96
5.1.40.0100.0509.94
5.1.30.0030.05710.34
5.1.20.0170.04310.33
5.1.10.0070.05310.07
5.1.00.0100.03710.08
5.0.50.0030.0478.72
5.0.40.0070.0438.41
5.0.30.0000.0508.28
5.0.20.0000.0438.18
5.0.10.0070.0178.27
5.0.00.0030.0578.14
4.4.90.0000.0378.12
4.4.80.0030.0178.12
4.4.70.0000.0378.12
4.4.60.0100.0278.12
4.4.50.0030.0308.12
4.4.40.0030.0578.12
4.4.30.0030.0308.12
4.4.20.0070.0338.12
4.4.10.0000.0238.12
4.4.00.0000.0508.12
4.3.110.0030.0338.12
4.3.100.0030.0308.12
4.3.90.0000.0238.12
4.3.80.0030.0538.12
4.3.70.0030.0308.12
4.3.60.0000.0208.12
4.3.50.0070.0308.12
4.3.40.0000.0508.12
4.3.30.0030.0338.12
4.3.20.0030.0178.12
4.3.10.0000.0378.12
4.3.00.0000.0408.12

preferences:
53.67 ms | 401 KiB | 5 Q