3v4l.org

run code in 300+ PHP versions simultaneously
<?php function quickRandom($length = 16) { $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; return substr(str_shuffle(str_repeat($pool, 5)), 0, $length); } echo strlen(quickRandom(311));

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)
7.4.00.0150.00314.67
7.3.120.0070.00714.61
7.3.110.0040.01114.72
7.3.100.0000.01614.51
7.3.90.0100.00714.72
7.3.80.0070.01114.60
7.3.70.0070.01014.80
7.3.60.0030.01014.48
7.3.50.0070.01014.89
7.3.40.0150.00014.76
7.3.30.0040.01114.88
7.3.20.0070.00716.62
7.3.10.0090.00116.43
7.3.00.0090.00516.59
7.2.250.0000.01714.67
7.2.240.0160.00314.72
7.2.230.0060.00915.04
7.2.220.0070.01014.95
7.2.210.0140.00314.54
7.2.200.0050.00914.90
7.2.190.0000.00915.05
7.2.180.0030.01314.70
7.2.170.0000.01415.05
7.2.130.0130.01316.71
7.2.120.0070.01516.77
7.2.110.0080.01216.43
7.2.100.0080.01016.86
7.2.90.0130.00916.90
7.2.80.0150.00616.64
7.2.70.0110.00716.71
7.2.60.0070.01016.90
7.2.50.0130.00616.63
7.2.40.0000.01216.82
7.2.30.0070.00716.92
7.2.20.0080.00816.50
7.2.10.0090.00616.74
7.2.00.0060.00718.13
7.1.330.0000.01215.73
7.1.320.0070.00715.61
7.1.310.0060.00915.73
7.1.300.0060.00615.77
7.1.290.0030.01215.57
7.1.280.0040.00715.49
7.1.270.0070.00715.61
7.1.260.0100.00315.79
7.1.250.0120.00615.61
7.1.240.0110.01115.75
7.1.230.0140.00715.62
7.1.220.0080.01915.68
7.1.210.0050.00915.60
7.1.200.0120.01215.61
7.1.190.0060.01015.66
7.1.180.0040.01215.81
7.1.170.0070.00715.81
7.1.160.0030.01015.66
7.1.150.0080.00515.69
7.1.140.0150.00315.78
7.1.130.0030.01215.67
7.1.120.0030.00615.49
7.1.110.0070.00715.73
7.1.100.0050.00817.09
7.1.90.0060.00615.71
7.1.80.0030.00915.77
7.1.70.0040.00616.39
7.1.60.0020.01617.43
7.1.50.0040.00916.20
7.1.40.0100.01015.39
7.1.30.0000.01715.38
7.1.20.0030.00615.72
7.1.10.0080.00315.57
7.1.00.0050.03719.05
7.0.330.0040.01215.45
7.0.320.0060.01215.26
7.0.310.0130.01015.35
7.0.300.0040.00415.37
7.0.290.0050.00515.41
7.0.280.0110.00415.21
7.0.270.0000.01015.43
7.0.260.0090.00915.38
7.0.250.0070.00715.52
7.0.240.0070.00315.32
7.0.230.0110.00015.15
7.0.220.0000.01015.25
7.0.210.0030.00615.08
7.0.200.0010.00716.01
7.0.190.0040.00715.29
7.0.180.0030.00715.36
7.0.170.0090.00915.07
7.0.160.0160.00015.60
7.0.150.0070.00715.31
7.0.140.0030.03818.64
7.0.130.0100.01015.17
7.0.120.0040.00815.48
7.0.110.0000.00915.41
7.0.100.0000.01515.25
7.0.90.0030.00615.25
7.0.80.0070.03217.78
7.0.70.0100.04117.65
7.0.60.0100.03817.59
7.0.50.0090.04317.86
7.0.40.0030.02716.64
7.0.30.0110.03916.80
7.0.20.0070.03116.73
7.0.10.0120.03716.80
7.0.00.0020.02916.77
5.6.380.0030.01313.91
5.6.370.0000.01413.97
5.6.360.0040.00714.19
5.6.350.0090.00014.28
5.6.340.0040.00714.30
5.6.330.0090.00314.10
5.6.320.0030.01013.83
5.6.310.0030.00914.20
5.6.300.0080.00414.27
5.6.290.0060.00913.80
5.6.280.0030.04317.53
5.6.270.0080.00514.09
5.6.260.0030.00714.33
5.6.250.0080.00814.45
5.6.240.0100.00314.31
5.6.230.0030.04417.24
5.6.220.0080.02517.41
5.6.210.0080.04017.40
5.6.200.0090.04217.61
5.6.190.0050.04817.60
5.6.180.0040.03417.46
5.6.170.0030.03517.53
5.6.160.0070.04017.41
5.6.150.0080.02717.52
5.6.140.0060.04017.54
5.6.130.0050.04717.62
5.6.120.0070.03617.59
5.6.110.0090.04517.69
5.6.100.0080.03317.65
5.6.90.0030.04917.54
5.6.80.0070.03617.27
5.6.70.0070.04117.07
5.6.60.0100.02717.29
5.6.50.0080.02317.09
5.6.40.0050.02217.30
5.6.30.0090.03517.27
5.6.20.0070.02517.13
5.6.10.0100.02817.18
5.6.00.0080.02217.23
5.5.380.0040.00810.86
5.5.370.0120.03815.67
5.5.360.0060.04415.69
5.5.350.0030.03315.67
5.5.340.0070.02315.79
5.5.330.0080.02315.82
5.5.320.0090.04415.74
5.5.310.0130.03516.11
5.5.300.0060.02515.82
5.5.290.0020.04715.87
5.5.280.0070.04215.69
5.5.270.0120.04215.85
5.5.260.0110.03715.94
5.5.250.0020.03615.87
5.5.240.0070.03715.51
5.5.230.0070.03715.40
5.5.220.0140.02815.71
5.5.210.0030.03915.53
5.5.200.0090.02815.61
5.5.190.0070.03515.57
5.5.180.0090.03915.55
5.5.170.0030.00311.13
5.5.160.0100.02215.58
5.5.150.0040.02415.57
5.5.140.0030.02515.61
5.5.130.0040.02615.54
5.5.120.0050.04815.39
5.5.110.0030.02715.56
5.5.100.0050.04615.27
5.5.90.0130.03315.44
5.5.80.0030.03915.25
5.5.70.0090.02515.33
5.5.60.0030.04015.52
5.5.50.0100.03315.43
5.5.40.0080.03615.64
5.5.30.0080.03715.48
5.5.20.0060.02315.61
5.5.10.0050.04415.54
5.5.00.0050.02315.46
5.4.450.0060.02615.16
5.4.440.0120.03815.22
5.4.430.0050.02815.11
5.4.420.0030.03215.13
5.4.410.0090.02414.97
5.4.400.0050.04514.94
5.4.390.0050.03014.75
5.4.380.0070.03914.89
5.4.370.0080.02314.83
5.4.360.0070.03614.78
5.4.350.0070.03514.96
5.4.340.0020.02715.05
5.4.330.0040.00710.95
5.4.320.0070.02715.00
5.4.310.0100.03315.07
5.4.300.0050.02514.95
5.4.290.0060.02114.94
5.4.280.0100.04015.06
5.4.270.0020.03014.94
5.4.260.0060.02514.95
5.4.250.0070.04014.88
5.4.240.0070.03914.83
5.4.230.0040.04515.00
5.4.220.0040.04314.75
5.4.210.0030.04214.80
5.4.200.0070.03714.94
5.4.190.0030.02214.86
5.4.180.0030.04215.01
5.4.170.0070.04214.90
5.4.160.0050.03714.91
5.4.150.0040.03714.78
5.4.140.0020.02813.57
5.4.130.0020.04313.63
5.4.120.0070.03613.62
5.4.110.0050.03913.73
5.4.100.0050.03913.59
5.4.90.0050.03613.65
5.4.80.0040.03013.73
5.4.70.0030.03813.57
5.4.60.0080.03513.60
5.4.50.0050.03813.67
5.4.40.0070.03513.66
5.4.30.0050.03713.63
5.4.20.0070.04013.78
5.4.10.0020.04313.67
5.4.00.0070.03713.39
5.3.290.0100.03512.61
5.3.280.0110.03312.59
5.3.270.0080.03512.54
5.3.260.0020.02212.59
5.3.250.0030.03112.64
5.3.240.0030.03312.43
5.3.230.0090.03812.61
5.3.220.0050.04012.58
5.3.210.0070.03712.36
5.3.200.0070.03512.35
5.3.190.0060.03912.44
5.3.180.0020.04112.46
5.3.170.0030.03912.48
5.3.160.0110.03212.63
5.3.150.0100.03812.57
5.3.140.0090.03412.43
5.3.130.0110.03612.43
5.3.120.0030.02712.50
5.3.110.0000.04312.55
5.3.100.0070.04012.30
5.3.90.0050.03912.31
5.3.80.0060.02212.27
5.3.70.0040.03312.28
5.3.60.0040.02512.31
5.3.50.0030.02912.26
5.3.40.0050.03912.32
5.3.30.0020.03712.28
5.3.20.0070.03712.28
5.3.10.0080.03512.21
5.3.00.0080.02312.19
5.2.170.0120.02812.03
5.2.160.0050.03112.03
5.2.150.0080.03312.03
5.2.140.0060.03212.03
5.2.130.0050.03112.03
5.2.120.0020.03812.03
5.2.110.0050.02312.03
5.2.100.0030.03412.03
5.2.90.0040.03212.03
5.2.80.0100.02712.03
5.2.70.0030.02712.03
5.2.60.0060.02812.03
5.2.50.0060.01812.03
5.2.40.0020.03212.03
5.2.30.0110.02512.03
5.2.20.0030.03312.03
5.2.10.0020.03612.03
5.2.00.0030.01712.03
5.1.60.0050.02012.03
5.1.50.0020.02012.03
5.1.40.0020.02912.03
5.1.30.0030.02612.03
5.1.20.0030.03212.03
5.1.10.0050.02912.03
5.1.00.0050.02812.03
5.0.50.0100.01812.03
5.0.40.0050.02112.03
5.0.30.0070.03012.03
5.0.20.0030.02412.03
5.0.10.0050.02312.03
5.0.00.0030.03112.03
4.4.90.0020.02012.03
4.4.80.0030.01812.03
4.4.70.0000.02112.03
4.4.60.0000.02312.03
4.4.50.0070.01312.03
4.4.40.0020.02212.03
4.4.30.0010.02112.03
4.4.20.0020.01912.03
4.4.10.0020.01912.03
4.4.00.0020.02712.03
4.3.110.0030.01812.03
4.3.100.0020.01512.03
4.3.90.0020.01812.03
4.3.80.0000.03112.03
4.3.70.0030.01512.03
4.3.60.0030.01212.03
4.3.50.0030.01212.03
4.3.40.0020.02712.03
4.3.30.0030.01812.03
4.3.20.0000.02212.03
4.3.10.0000.02012.03
4.3.00.0000.01812.03

preferences:
37.54 ms | 401 KiB | 5 Q