3v4l.org

run code in 300+ PHP versions simultaneously
<?php $generated_id = strtoupper(substr('abcdefghijklmnopqrstuvwxyz', mt_rand(0,25), 1) . mt_rand(0,9) . substr(hash("sha256", time() . mt_rand(100000,999999)),0,6)); echo $generated_id;

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)
7.4.10.0070.01114.92
7.4.00.0060.01114.86
7.3.130.0100.01014.58
7.3.120.0070.01015.07
7.3.110.0090.01014.80
7.3.100.0060.00914.76
7.3.90.0070.00914.69
7.3.80.0030.01114.98
7.3.70.0120.00314.84
7.3.60.0050.00814.85
7.3.50.0080.00614.70
7.3.40.0060.00814.83
7.3.30.0070.00614.84
7.3.20.0030.00616.61
7.3.10.0030.01116.63
7.3.00.0090.00516.50
7.2.260.0000.01915.05
7.2.250.0100.00915.12
7.2.240.0050.01115.00
7.2.230.0100.00514.99
7.2.220.0050.01115.07
7.2.210.0020.00914.89
7.2.200.0070.00715.06
7.2.190.0060.00814.99
7.2.180.0050.01015.04
7.2.170.0070.00714.84
7.2.160.0100.00615.01
7.2.150.0070.00716.93
7.2.140.0030.00616.66
7.2.130.0070.01016.98
7.2.120.0120.00016.70
7.2.110.0090.00616.89
7.2.100.0040.00816.84
7.2.90.0040.01116.73
7.2.80.0090.00316.70
7.2.70.0070.00716.88
7.2.60.0000.01416.93
7.2.50.0060.00916.82
7.2.40.0070.00316.66
7.2.30.0030.00716.66
7.2.20.0080.00816.79
7.2.10.0100.00717.01
7.2.00.0100.00618.06
7.1.330.0030.01015.85
7.1.320.0050.00915.66
7.1.310.0100.00315.68
7.1.300.0030.00615.73
7.1.290.0060.00615.84
7.1.280.0040.01215.82
7.1.270.0110.00215.73
7.1.260.0070.00615.78
7.1.250.0060.00915.63
7.1.240.0030.01015.93
7.1.230.0070.00415.59
7.1.220.0090.00615.79
7.1.210.0090.00315.57
7.1.200.0100.00315.89
7.1.190.0060.00815.48
7.1.180.0030.00715.81
7.1.170.0030.00715.66
7.1.160.0100.00615.85
7.1.150.0110.00015.77
7.1.140.0030.01015.86
7.1.130.0060.01015.72
7.1.120.0110.00315.51
7.1.110.0040.00715.89
7.1.100.0030.01015.50
7.1.90.0030.01015.68
7.1.80.0060.00915.79
7.1.70.0060.00216.45
7.1.60.0070.01017.40
7.1.50.0000.01416.04
7.1.40.0040.01215.70
7.1.30.0040.00415.77
7.1.20.0060.00915.95
7.1.10.0030.01015.56
7.1.00.0040.01819.04
7.0.330.0000.00915.06
7.0.320.0030.01015.43
7.0.310.0040.00815.45
7.0.300.0000.01315.51
7.0.290.0080.00015.35
7.0.280.0030.00715.50
7.0.270.0030.00715.35
7.0.260.0070.00315.43
7.0.250.0060.00615.56
7.0.240.0090.00315.59
7.0.230.0040.00815.45
7.0.220.0060.00915.25
7.0.210.0070.00715.14
7.0.200.0100.00216.13
7.0.190.0030.01015.40
7.0.180.0080.00515.30
7.0.170.0080.00015.55
7.0.160.0070.00715.22
7.0.150.0000.00815.41
7.0.140.0120.03518.64
7.0.130.0100.00315.35
7.0.120.0100.00315.08
7.0.110.0070.00715.26
7.0.100.0030.00915.43
7.0.90.0090.02317.65
7.0.80.0110.02517.76
7.0.70.0060.02417.70
7.0.60.0060.04317.64
7.0.50.0020.03217.89
7.0.40.0050.02416.73
7.0.30.0030.04516.68
7.0.20.0050.04516.79
7.0.10.0020.03416.70
7.0.00.0110.04316.74
5.6.400.0060.00914.23
5.6.390.0060.00314.37
5.6.380.0080.00514.31
5.6.370.0030.00614.29
5.6.360.0060.00914.57
5.6.350.0130.00014.31
5.6.340.0030.01014.19
5.6.330.0070.00714.48
5.6.320.0040.01114.43
5.6.310.0060.00614.46
5.6.300.0070.00714.41
5.6.290.0070.00714.29
5.6.280.0110.03317.67
5.6.270.0030.01014.23
5.6.260.0000.01514.22
5.6.250.0120.00314.46
5.6.240.0030.02817.41
5.6.230.0050.02317.52
5.6.220.0020.02917.51
5.6.210.0030.02817.64
5.6.200.0050.03217.63
5.6.190.0020.02817.59
5.6.180.0100.03017.69
5.6.170.0100.04117.71
5.6.160.0050.04717.66
5.6.150.0090.05017.63
5.6.140.0070.04817.74
5.6.130.0050.04117.65
5.6.120.0070.04617.87
5.6.110.0160.02317.66
5.6.100.0050.04217.77
5.6.90.0070.03817.65
5.6.80.0080.03417.28
5.6.70.0070.03817.33
5.6.60.0050.04817.30
5.6.50.0090.04117.27
5.6.40.0120.02817.30
5.6.30.0070.04217.38
5.6.20.0130.03517.24
5.6.10.0080.04017.41
5.6.00.0070.03917.41
5.5.380.0050.02717.44
5.5.370.0050.03417.38
5.5.360.0090.04017.27
5.5.350.0110.02017.30
5.5.340.0080.02817.64
5.5.330.0100.02917.61
5.5.320.0080.02317.48
5.5.310.0130.04117.42
5.5.300.0030.05417.44
5.5.290.0050.03217.39
5.5.280.0110.04017.59
5.5.270.0070.04717.38
5.5.260.0120.04217.60
5.5.250.0080.04217.42
5.5.240.0130.03517.11
5.5.230.0070.04517.24
5.5.220.0050.03917.24
5.5.210.0080.04017.15
5.5.200.0120.04016.97
5.5.190.0100.04016.96
5.5.180.0030.03917.13
5.5.170.0040.00714.04
5.5.160.0100.04017.33
5.5.150.0050.04717.18
5.5.140.0110.03116.93
5.5.130.0020.04717.05
5.5.120.0070.04117.04
5.5.110.0050.04517.02
5.5.100.0100.04117.21
5.5.90.0080.04017.23
5.5.80.0070.03917.24
5.5.70.0070.04717.15
5.5.60.0100.04117.13
5.5.50.0050.03917.12
5.5.40.0070.02717.09
5.5.30.0110.04317.02
5.5.20.0090.03716.82
5.5.10.0080.04017.01
5.5.00.0050.02917.05
5.4.450.0080.03815.33
5.4.440.0050.04515.19
5.4.430.0020.04215.37
5.4.420.0090.04215.35
5.4.410.0120.03915.22
5.4.400.0030.04415.20
5.4.390.0040.03315.04
5.4.380.0080.03615.11
5.4.370.0100.03615.17
5.4.360.0090.04515.21
5.4.350.0060.04015.12
5.4.340.0070.03315.19
5.4.330.0080.00311.27
5.4.320.0130.03515.16
5.4.310.0100.04015.18
5.4.300.0100.03815.12
5.4.290.0030.03215.19
5.4.280.0080.03515.04
5.4.270.0050.03815.25
5.4.260.0130.03015.18
5.4.250.0050.03915.02
5.4.240.0070.04315.10
5.4.230.0090.03715.15
5.4.220.0070.04015.20
5.4.210.0050.04115.10
5.4.200.0070.03715.17
5.4.190.0200.03015.10
5.4.180.0060.04115.21
5.4.170.0100.03815.11
5.4.160.0100.04015.18
5.4.150.0070.04215.14
5.4.140.0090.03813.82
5.4.130.0040.03913.77
5.4.120.0050.04113.82
5.4.110.0090.03513.82
5.4.100.0100.03713.85
5.4.90.0050.03113.85
5.4.80.0020.02413.83
5.4.70.0090.03413.78
5.4.60.0020.04413.76
5.4.50.0070.03413.83
5.4.40.0030.03313.81
5.4.30.0070.04213.77
5.4.20.0060.03913.75
5.4.10.0050.03613.73
5.4.00.0110.03113.53
5.3.290.0020.03412.93
5.3.280.0070.03212.86
5.3.270.0080.03312.93
5.3.260.0070.04412.94
5.3.250.0030.04212.93
5.3.240.0100.03212.93
5.3.230.0080.04012.94
5.3.220.0030.04512.91
5.3.210.0050.04312.91
5.3.200.0110.03712.84
5.3.190.0050.04212.89
5.3.180.0020.04312.89
5.3.170.0030.03712.83
5.3.160.0000.04512.88
5.3.150.0070.03612.92
5.3.140.0100.03512.84
5.3.130.0100.03912.90
5.3.120.0020.04412.90
5.3.110.0070.04012.89
5.3.100.0050.03512.58
5.3.90.0070.04012.62
5.3.80.0050.04212.62
5.3.70.0050.04212.56
5.3.60.0050.04112.61
5.3.50.0030.03912.56
5.3.40.0050.02712.60
5.3.30.0060.02012.58
5.3.20.0100.01812.46
5.3.10.0070.02012.35
5.3.00.0020.03212.42
5.2.170.0070.06011.18
5.2.160.0070.04711.06
5.2.150.0030.04011.06
5.2.140.0100.04311.06
5.2.130.0030.03011.16
5.2.120.0030.03011.06
5.2.110.0100.03711.12
5.2.100.0000.04011.14
5.2.90.0000.05011.06
5.2.80.0030.05311.06
5.2.70.0070.06011.10
5.2.60.0000.03311.06
5.2.50.0000.05011.06
5.2.40.0030.03311.06
5.2.30.0030.06311.06
5.2.20.0030.03011.06
5.2.10.0030.03311.06
5.2.00.0170.05011.06
5.1.60.0100.04311.06
5.1.50.0130.04711.06
5.1.40.0030.04711.06
5.1.30.0070.04011.06
5.1.20.0000.06011.06
5.1.10.0100.04011.06
5.1.00.0030.05711.06
5.0.50.0000.03311.06
5.0.40.0070.04311.06
5.0.30.0070.05311.06
5.0.20.0000.03711.06
5.0.10.0000.03711.06
5.0.00.0000.03711.06
4.4.90.0000.03711.06
4.4.80.0070.01711.06
4.4.70.0000.01711.06
4.4.60.0000.02311.06
4.4.50.0030.01711.06
4.4.40.0000.05711.06
4.4.30.0000.03711.06
4.4.20.0030.04011.06
4.4.10.0030.03311.06
4.4.00.0000.05311.06
4.3.110.0000.03011.06
4.3.100.0000.03311.06
4.3.90.0030.02011.06
4.3.80.0030.05311.06
4.3.70.0000.02311.06
4.3.60.0000.03311.06
4.3.50.0030.03011.06
4.3.40.0070.03711.06
4.3.30.0000.03011.06
4.3.20.0000.03711.06
4.3.10.0000.03311.06
4.3.00.0030.03311.06

preferences:
62.44 ms | 401 KiB | 5 Q