3v4l.org

run code in 300+ PHP versions simultaneously
<?php class SerialDateTime extends DateTime implements JsonSerializable{ public function jsonSerialize(){ return $this->getTimestamp(); } } class StringDateTime extends DateTime{ public function __toString(){ return ''+$this->getTimestamp(); } } $j = new SerialDateTime; $s = new StringDateTime; //echo $j."\n"; echo $s."\n"; echo json_encode(array($j, $s));

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)
8.3.60.0070.01416.88
8.3.50.0080.01018.48
8.3.40.0140.00719.09
8.3.30.0090.00618.93
8.3.20.0040.00419.07
8.3.10.0090.00020.66
8.3.00.0060.00319.51
8.2.180.0130.01017.00
8.2.170.0180.00422.96
8.2.160.0120.00318.90
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0090.00026.16
8.2.120.0050.00318.90
8.2.110.0060.00320.51
8.2.100.0080.00418.03
8.2.90.0050.00319.36
8.2.80.0080.00018.00
8.2.70.0000.00817.88
8.2.60.0040.00417.93
8.2.50.0060.00318.07
8.2.40.0000.00818.30
8.2.30.0040.00418.11
8.2.20.0030.00619.70
8.2.10.0050.00217.82
8.2.00.0000.01017.94
8.1.280.0110.00425.92
8.1.270.0080.00023.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00422.06
8.1.230.0110.00017.58
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0100.00017.60
8.1.190.0000.00717.66
8.1.180.0030.00518.10
8.1.170.0080.00018.77
8.1.160.0050.00219.03
8.1.150.0000.00718.93
8.1.140.0040.00417.56
8.1.130.0000.00717.82
8.1.120.0000.00717.71
8.1.110.0000.00717.68
8.1.100.0080.00017.64
8.1.90.0030.00517.69
8.1.80.0070.00017.55
8.1.70.0070.00017.62
8.1.60.0000.00817.64
8.1.50.0050.00217.56
8.1.40.0040.00417.64
8.1.30.0040.00417.79
8.1.20.0000.00717.82
8.1.10.0000.00817.59
8.1.00.0040.00417.73
8.0.300.0000.00918.77
8.0.290.0030.00617.00
8.0.280.0070.00018.44
8.0.270.0030.00317.34
8.0.260.0060.00018.52
8.0.250.0000.00717.19
8.0.240.0050.00317.24
8.0.230.0030.00317.24
8.0.220.0040.00417.23
8.0.210.0040.00417.15
8.0.200.0040.00417.14
8.0.190.0030.00617.09
8.0.180.0040.00417.08
8.0.170.0000.00817.14
8.0.160.0050.00217.27
8.0.150.0070.00017.17
8.0.140.0000.00717.13
8.0.130.0050.00013.50
8.0.120.0080.00017.02
8.0.110.0070.00016.95
8.0.100.0040.00417.22
8.0.90.0000.01017.27
8.0.80.0110.01117.17
8.0.70.0040.00417.25
8.0.60.0040.00417.02
8.0.50.0070.00017.07
8.0.30.0070.01117.50
8.0.20.0130.00717.25
8.0.10.0020.00517.27
8.0.00.0080.01317.04
7.4.330.0030.00313.12
7.4.320.0060.00016.65
7.4.300.0000.00716.70
7.4.290.0000.00816.65
7.4.280.0040.00416.63
7.4.270.0030.00316.73
7.4.260.0050.00013.41
7.4.250.0050.00316.74
7.4.240.0030.00316.76
7.4.230.0000.00716.54
7.4.220.0150.00416.69
7.4.210.0090.00616.61
7.4.200.0030.00316.68
7.4.190.0040.00416.51
7.4.160.0090.01216.75
7.4.150.0040.01316.80
7.4.140.0060.01216.76
7.4.130.0120.00616.61
7.4.120.0100.00616.93
7.4.110.0140.00316.89
7.4.100.0100.01316.75
7.4.90.0090.00916.79
7.4.80.0120.00619.39
7.4.70.0070.01016.79
7.4.60.0080.00816.71
7.4.50.0060.00016.70
7.4.40.0030.01216.90
7.4.30.0080.01416.60
7.4.00.0070.01015.45
7.3.330.0030.00313.36
7.3.320.0000.00713.46
7.3.310.0040.00416.52
7.3.300.0030.00316.49
7.3.290.0090.00816.47
7.3.280.0080.01016.49
7.3.270.0110.00716.45
7.3.260.0140.00716.51
7.3.250.0100.01316.58
7.3.240.0070.01016.57
7.3.230.0100.00616.53
7.3.210.0110.01516.55
7.3.200.0100.00716.75
7.3.190.0070.01416.67
7.3.180.0060.01816.79
7.3.170.0120.00616.66
7.3.160.0100.00516.66
7.3.120.0060.00915.14
7.3.10.0090.00616.91
7.3.00.0150.00316.68
7.2.330.0070.01016.88
7.2.320.0090.00916.82
7.2.310.0070.01116.83
7.2.300.0070.01016.90
7.2.290.0160.00616.62
7.2.130.0100.00617.16
7.2.120.0070.00716.84
7.2.110.0120.00617.13
7.2.100.0070.00417.24
7.2.90.0030.00717.11
7.2.80.0000.01416.98
7.2.70.0000.00916.89
7.2.60.0030.01217.03
7.2.50.0060.00917.04
7.2.40.0100.00017.23
7.2.30.0030.01017.11
7.2.20.0090.00616.99
7.2.10.0040.00717.04
7.2.00.0060.00818.35
7.1.250.0030.01315.91
7.1.200.0040.01115.81
7.1.100.0040.00418.25
7.1.70.0000.00817.21
7.1.60.0070.01719.17
7.1.50.0070.01716.72
7.1.00.0030.03322.51
7.0.200.0030.00616.56
7.0.140.0000.07322.18
7.0.120.0130.06722.13
7.0.90.0130.08019.89
7.0.80.0100.04719.91
7.0.70.0030.08020.02
7.0.60.0130.07719.96
7.0.50.0130.07720.25
7.0.40.0100.05320.09
7.0.30.0070.09019.99
7.0.20.0100.08320.08
7.0.10.0070.07720.05
7.0.00.0100.08320.14
5.6.280.0030.07020.82
5.6.240.0070.04320.60
5.6.230.0030.08020.69
5.6.220.0030.05720.69
5.6.210.0130.07020.48
5.6.200.0130.05321.09
5.6.190.0000.05320.97
5.6.180.0170.05721.05
5.6.170.0030.06321.06
5.6.160.0000.08721.11
5.6.150.0100.07720.95
5.6.140.0130.06321.08
5.6.130.0030.08321.09
5.6.120.0030.06321.04
5.6.110.0070.08721.02
5.6.100.0100.08320.95
5.6.90.0130.04720.93
5.6.80.0100.06020.44
5.6.70.0070.08320.39
5.6.60.0100.06720.39
5.6.50.0070.06320.53
5.6.40.0030.06320.30
5.6.30.0070.08020.39
5.6.20.0070.08020.30
5.6.10.0130.08020.39
5.6.00.0070.07320.43
5.5.380.0070.06320.37
5.5.370.0100.04720.35
5.5.360.0070.04320.45
5.5.350.0030.08720.39
5.5.340.0130.05720.77
5.5.330.0030.05320.93
5.5.320.0170.07720.78
5.5.310.0070.07720.87
5.5.300.0070.04720.88
5.5.290.0070.04720.77
5.5.280.0070.08720.86
5.5.270.0030.09020.79
5.5.260.0100.08320.88
5.5.250.0100.05720.74
5.5.240.0100.06020.22
5.5.230.0030.07720.29
5.5.220.0130.07020.32
5.5.210.0030.05320.15
5.5.200.0100.07020.25
5.5.190.0100.08020.18
5.5.180.0070.07720.14
5.5.160.0070.07320.16
5.5.150.0170.05720.12
5.5.140.0070.05019.98
5.5.130.0100.07720.22
5.5.120.0100.07720.23
5.5.110.0070.05320.21
5.5.100.0100.07320.18
5.5.90.0030.07720.17
5.5.80.0030.04720.06
5.5.70.0000.05320.07
5.5.60.0070.05020.04
5.5.50.0030.05320.16
5.5.40.0000.04720.11
5.5.30.0030.08020.04
5.5.20.0100.05320.09
5.5.10.0000.05720.07
5.5.00.0100.07020.06
5.4.450.0100.08019.27
5.4.440.0030.08319.45
5.4.430.0070.04719.52
5.4.420.0100.04319.47
5.4.410.0130.04019.09
5.4.400.0130.07319.23
5.4.390.0200.06319.03
5.4.380.0200.06019.09
5.4.370.0030.07018.94
5.4.360.0030.08018.90
5.4.350.0100.07319.03
5.4.340.0100.05019.05
5.4.320.0070.04719.25
5.4.310.0100.05319.00
5.4.300.0070.05019.12
5.4.290.0100.07319.12
5.4.280.0070.04319.20
5.4.270.0100.08018.91
5.4.260.0070.07319.13
5.4.250.0100.06719.02
5.4.240.0030.08019.17
5.4.230.0030.04319.11
5.4.220.0230.03019.12
5.4.210.0130.07019.25
5.4.200.0200.04718.84
5.4.190.0030.04019.04
5.4.180.0000.07718.84
5.4.170.0000.07719.07
5.4.160.0070.07319.07
5.4.150.0130.05718.88
5.4.140.0130.06716.46
5.4.130.0070.07716.25
5.4.120.0100.06716.42
5.4.110.0000.08016.38
5.4.100.0100.06316.45
5.4.90.0030.04016.52
5.4.80.0100.03316.46
5.4.70.0070.05316.33
5.4.60.0100.04316.47
5.4.50.0070.04016.48
5.4.40.0000.08016.36
5.4.30.0030.06316.40
5.4.20.0170.03716.29
5.4.10.0100.06716.44
5.4.00.0070.07315.82
5.3.290.0070.08314.66
5.3.280.0070.05314.70
5.3.270.0030.07714.68
5.3.260.0070.05714.61
5.3.250.0100.04314.67
5.3.240.0070.05714.73
5.3.230.0130.07714.71
5.3.220.0070.07014.51
5.3.210.0100.06714.58
5.3.200.0070.05014.52
5.3.190.0100.03314.59
5.3.180.0000.05314.51
5.3.170.0030.08014.63
5.3.160.0000.08014.54
5.3.150.0100.05314.55
5.3.140.0030.04714.58
5.3.130.0030.07714.50
5.3.120.0030.08014.58
5.3.110.0070.07714.61
5.3.100.0100.06714.07
5.3.90.0030.05714.05
5.3.80.0130.06013.94
5.3.70.0100.07014.03
5.3.60.0030.05714.11
5.3.50.0030.05713.94
5.3.40.0070.07013.88
5.3.30.0130.06713.93
5.3.20.0070.05713.68
5.3.10.0000.05013.73
5.3.00.0070.04713.68
5.2.170.0100.06011.15
5.2.160.0070.06311.08
5.2.150.0000.04311.05
5.2.140.0100.05711.17
5.2.130.0070.03011.25
5.2.120.0030.06311.00
5.2.110.0030.06311.17
5.2.100.0000.04711.12
5.2.90.0030.06311.18
5.2.80.0070.05711.02
5.2.70.0070.06011.19
5.2.60.0100.05711.07
5.2.50.0100.06011.01
5.2.40.0030.06311.03
5.2.30.0000.04010.88
5.2.20.0030.06311.02
5.2.10.0030.04711.00
5.2.00.0100.05710.84
5.1.60.0070.05010.07
5.1.50.0070.05010.08
5.1.40.0000.04310.02
5.1.30.0000.04710.40
5.1.20.0070.05010.38
5.1.10.0030.05310.16
5.1.00.0100.03710.15
5.0.50.0030.0478.62
5.0.40.0070.0408.52
5.0.30.0030.0578.07
5.0.20.0100.0378.05
5.0.10.0100.0378.17
5.0.00.0070.0578.15
4.4.90.0030.0377.31
4.4.80.0000.0377.31
4.4.70.0000.0277.31
4.4.60.0070.0277.31
4.4.50.0030.0307.31
4.4.40.0030.0337.31
4.4.30.0030.0337.31
4.4.20.0000.0237.31
4.4.10.0000.0377.31
4.4.00.0000.0537.31
4.3.110.0000.0407.31
4.3.100.0000.0377.31
4.3.90.0070.0307.31
4.3.80.0030.0377.31
4.3.70.0030.0277.31
4.3.60.0000.0237.31
4.3.50.0070.0277.31
4.3.40.0000.0507.31
4.3.30.0000.0337.31
4.3.20.0000.0407.31
4.3.10.0000.0377.31
4.3.00.0000.0277.31

preferences:
58.59 ms | 401 KiB | 5 Q