3v4l.org

run code in 300+ PHP versions simultaneously
<?php function getTimestamp() { return date("dmyHis").substr((string)microtime(), 1, 8); } echo getTimestamp();

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)
7.3.10.0140.00416.75
7.3.00.0070.01016.55
7.2.130.0070.00716.89
7.2.120.0040.01216.98
7.2.110.0040.01417.04
7.2.100.0130.00316.61
7.2.90.0040.01117.07
7.2.80.0120.00316.90
7.2.70.0060.00616.99
7.2.60.0070.01016.88
7.2.50.0090.00616.88
7.2.40.0100.00316.63
7.2.30.0100.01016.89
7.2.20.0070.01016.68
7.2.10.0060.00916.93
7.2.00.0050.01118.02
7.1.250.0060.00615.90
7.1.70.0050.00317.34
7.1.60.0100.01019.82
7.1.50.0040.01117.08
7.1.00.0070.07322.42
7.0.200.0040.00416.49
7.0.140.0000.09321.96
7.0.90.0130.08019.92
7.0.80.0200.07719.84
7.0.70.0530.08319.93
7.0.60.0300.06319.88
7.0.50.0200.06020.33
7.0.40.0070.06320.03
7.0.30.0070.07320.11
7.0.20.0070.08020.03
7.0.10.0070.07320.06
7.0.00.0130.05320.18
5.6.280.0030.07320.99
5.6.240.0100.07320.58
5.6.230.0100.08320.54
5.6.220.0170.06020.67
5.6.210.0070.04320.75
5.6.200.0070.08321.09
5.6.190.0070.07721.01
5.6.180.0200.05720.94
5.6.170.0070.09320.94
5.6.160.0200.03321.11
5.6.150.0070.05720.94
5.6.140.0030.06321.03
5.6.130.0070.04321.18
5.6.120.0000.04721.07
5.6.110.0000.05721.04
5.6.100.0030.07021.05
5.6.90.0100.08720.96
5.6.80.0170.07320.50
5.6.70.0130.07320.33
5.6.60.0070.07720.39
5.6.50.0070.07020.34
5.6.40.0070.04320.32
5.6.30.0030.08320.32
5.6.20.0200.06320.31
5.6.10.0030.08020.43
5.6.00.0130.07320.35
5.5.380.0100.04020.39
5.5.370.0100.07720.52
5.5.360.0070.05020.48
5.5.350.0030.09020.37
5.5.340.0100.05020.88
5.5.330.0070.08720.91
5.5.320.0000.08020.88
5.5.310.0070.07020.76
5.5.300.0330.06020.92
5.5.290.0170.07720.86
5.5.280.0100.04020.81
5.5.270.0100.04320.89
5.5.260.0070.07720.90
5.5.250.0030.08720.64
5.5.240.0170.03720.03
5.5.230.0070.07320.21
5.5.220.0170.06020.02
5.5.210.0130.03720.14
5.5.200.0100.05320.27
5.5.190.0100.08020.15
5.5.180.0130.06720.13
5.5.160.0130.06320.21
5.5.150.0030.07720.23
5.5.140.0070.08020.23
5.5.130.0100.07020.17
5.5.120.0100.07720.21
5.5.110.0130.07720.22
5.5.100.0100.03720.03
5.5.90.0070.04320.07
5.5.80.0070.07720.10
5.5.70.0030.08320.05
5.5.60.0030.04320.15
5.5.50.0070.06320.11
5.5.40.0100.06320.05
5.5.30.0070.05320.13
5.5.20.0070.07720.11
5.5.10.0100.06020.04
5.5.00.0100.05719.96
5.4.450.0030.06719.38
5.4.440.0100.03719.53
5.4.430.0030.08319.16
5.4.420.0070.05719.45
5.4.410.0200.06019.27
5.4.400.0100.07319.05
5.4.390.0070.05719.18
5.4.380.0070.08319.04
5.4.370.0000.04719.04
5.4.360.0070.05719.22
5.4.350.0000.08019.13
5.4.340.0070.04319.14
5.4.320.0130.06319.18
5.4.310.0070.07719.20
5.4.300.0000.05719.02
5.4.290.0070.07718.95
5.4.280.0030.04019.04
5.4.270.0030.07318.84
5.4.260.0100.07019.04
5.4.250.0130.07319.02
5.4.240.0100.08019.12
5.4.230.0100.06319.04
5.4.220.0100.07019.20
5.4.210.0030.04719.02
5.4.200.0130.05719.11
5.4.190.0100.07019.22
5.4.180.0100.07319.01
5.4.170.0030.05719.02
5.4.160.0130.07719.00
5.4.150.0070.06719.21
5.4.140.0070.07716.38
5.4.130.0030.04716.40
5.4.120.0070.03716.43
5.4.110.0170.06016.55
5.4.100.0070.06716.52
5.4.90.0000.07316.52
5.4.80.0100.06316.38
5.4.70.0030.05716.40
5.4.60.0130.06716.46
5.4.50.0070.06716.32
5.4.40.0070.04016.53
5.4.30.0070.04016.40
5.4.20.0070.07016.39
5.4.10.0100.04716.46
5.4.00.0030.07715.89
5.3.290.0030.08314.71
5.3.280.0130.03014.55
5.3.270.0000.06714.57
5.3.260.0070.08314.74
5.3.250.0100.05714.67
5.3.240.0130.06714.66
5.3.230.0030.07314.73
5.3.220.0100.07714.63
5.3.210.0030.08314.70
5.3.200.0100.07014.66
5.3.190.0100.07314.68
5.3.180.0070.05714.52
5.3.170.0070.07014.53
5.3.160.0200.02714.54
5.3.150.0030.07714.53
5.3.140.0070.07314.54
5.3.130.0070.07714.63
5.3.120.0000.08314.57
5.3.110.0070.04014.68
5.3.100.0000.08014.16
5.3.90.0070.07314.07
5.3.80.0070.07314.13
5.3.70.0100.04014.00
5.3.60.0200.05714.01
5.3.50.0000.06013.83
5.3.40.0130.06714.05
5.3.30.0100.07014.00
5.3.20.0000.05013.71
5.3.10.0170.06313.58
5.3.00.0100.06713.74
5.2.170.0070.06011.22
5.2.160.0070.05711.04
5.2.150.0070.06011.04
5.2.140.0000.06311.19
5.2.130.0030.06011.20
5.2.120.0070.04711.04
5.2.110.0070.06011.04
5.2.100.0030.05711.09
5.2.90.0070.03311.19
5.2.80.0100.05711.08
5.2.70.0030.05011.15
5.2.60.0030.05011.08
5.2.50.0000.06711.04
5.2.40.0030.05711.13
5.2.30.0030.06011.04
5.2.20.0030.03311.04
5.2.10.0070.04711.04
5.2.00.0030.04011.04
5.1.60.0030.02711.04
5.1.50.0030.02311.04
5.1.40.0030.03711.04
5.1.30.0000.03011.04
5.1.20.0070.04311.04
5.1.10.0030.03311.04
5.1.00.0070.04711.04
5.0.50.0070.04311.04
5.0.40.0000.02011.04
5.0.30.0070.05311.04
5.0.20.0000.03711.04
5.0.10.0030.03711.04
5.0.00.0070.05011.04
4.4.90.0030.01711.04
4.4.80.0070.03011.04
4.4.70.0030.03311.04
4.4.60.0070.03311.04
4.4.50.0030.02711.04
4.4.40.0030.05011.04
4.4.30.0030.02711.04
4.4.20.0070.03011.04
4.4.10.0000.02711.04
4.4.00.0030.03711.04
4.3.110.0000.03311.04
4.3.100.0000.02011.04
4.3.90.0030.03011.04
4.3.80.0000.05011.04
4.3.70.0030.03011.04
4.3.60.0030.03311.04
4.3.50.0000.03011.04
4.3.40.0000.04711.04
4.3.30.0030.01711.04
4.3.20.0030.02311.04
4.3.10.0030.03311.04
4.3.00.0070.03011.04

preferences:
37.81 ms | 401 KiB | 5 Q