3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = 1000; $start = microtime(true); while ($i--) uniqid(""); $elapsed = microtime(true) - $start; printf("less_entropy: %d\n", $elapsed * 1000); $i = 1000; $start = microtime(true); while ($i--) uniqid("", true); $elapsed = microtime(true) - $start; printf("more_entropy: %d\n", $elapsed * 1000);

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)
7.4.10.0110.00814.91
7.4.00.0090.01014.85
7.3.130.0080.01114.72
7.3.120.0100.00714.88
7.3.110.0060.01515.07
7.3.100.0050.01014.91
7.3.90.0030.00914.81
7.3.80.0070.00714.87
7.3.70.0040.00814.55
7.3.60.0100.00714.85
7.3.50.0070.00714.82
7.3.40.0030.01514.59
7.3.30.0060.01114.80
7.3.20.0050.01116.51
7.3.10.0070.00716.54
7.3.00.0000.01216.66
7.2.260.0110.01014.95
7.2.250.0060.01514.71
7.2.240.0000.01615.06
7.2.230.0060.01315.01
7.2.220.0090.01214.91
7.2.210.0070.00914.97
7.2.200.0090.00615.05
7.2.190.0060.01115.01
7.2.180.0060.00914.92
7.2.170.0060.00814.92
7.2.160.0050.01515.02
7.2.150.0050.01116.85
7.2.140.0100.00616.89
7.2.130.0090.00716.95
7.2.120.0050.01216.70
7.2.110.0070.01016.88
7.2.100.0050.01116.85
7.2.90.0050.01316.90
7.2.80.0020.01516.94
7.2.70.0070.01016.84
7.2.60.0020.01416.81
7.2.50.0020.01416.97
7.2.40.0070.01216.84
7.2.30.0030.01316.96
7.2.20.0070.00916.87
7.2.10.0090.00916.60
7.2.00.0040.01317.64
7.1.330.0070.01315.61
7.1.320.0130.01115.75
7.1.310.0110.01115.64
7.1.300.0080.01115.79
7.1.290.0110.00815.65
7.1.280.0080.01215.68
7.1.270.0070.01015.59
7.1.260.0090.01115.78
7.1.250.0060.01315.59
7.1.240.0020.01815.68
7.1.230.0110.01115.65
7.1.220.0100.01015.54
7.1.210.0080.01015.61
7.1.200.0110.00915.78
7.1.190.0080.01415.66
7.1.180.0100.01115.51
7.1.170.0040.01615.82
7.1.160.0090.01215.45
7.1.150.0080.01115.86
7.1.140.0050.01515.59
7.1.130.0130.00715.69
7.1.120.0090.00715.60
7.1.110.0100.01115.85
7.1.100.0050.01515.74
7.1.90.0070.01315.61
7.1.80.0090.01315.75
7.1.70.0080.01116.11
7.1.60.0160.00716.91
7.1.50.0110.01016.12
7.1.40.0080.01315.71
7.1.30.0090.01115.79
7.1.20.0070.01415.64
7.1.10.0060.01615.48
7.1.00.0080.03417.90
7.0.330.0110.00915.40
7.0.320.0110.00715.44
7.0.310.0060.01015.40
7.0.300.0040.01415.29
7.0.290.0050.01515.27
7.0.280.0060.01415.37
7.0.270.0120.00915.54
7.0.260.0040.01615.51
7.0.250.0090.01215.47
7.0.240.0060.01815.26
7.0.230.0050.01315.46
7.0.220.0090.00915.25
7.0.210.0080.01115.32
7.0.200.0100.01115.65
7.0.190.0150.00815.39
7.0.180.0050.01515.37
7.0.170.0100.01215.45
7.0.160.0090.01015.39
7.0.150.0130.00915.49
7.0.140.0080.03317.69
7.0.130.0160.00615.35
7.0.120.0080.01315.49
7.0.110.0080.01315.38
7.0.100.0070.03716.86
7.0.90.0070.03716.90
7.0.80.0110.03316.66
7.0.70.0110.02816.88
7.0.60.0090.03516.96
7.0.50.0220.02617.11
7.0.40.0070.03615.54
7.0.30.0050.02615.60
7.0.20.0100.03715.67
7.0.10.0130.03215.66
7.0.00.0090.03915.42
5.6.400.0030.02014.18
5.6.390.0070.01014.29
5.6.380.0050.01614.45
5.6.370.0100.01014.11
5.6.360.0050.01614.31
5.6.350.0080.01114.19
5.6.340.0080.01314.31
5.6.330.0090.01214.20
5.6.320.0060.01814.10
5.6.310.0120.01114.20
5.6.300.0150.00414.39
5.6.290.0140.01014.36
5.6.280.0120.03016.33
5.6.270.0050.01714.59
5.6.260.0120.01014.39
5.6.250.0080.03616.44
5.6.240.0130.02916.44
5.6.230.0130.03316.44
5.6.220.0090.02916.36
5.6.210.0120.03216.30
5.6.200.0110.03116.49
5.6.190.0120.02816.48
5.6.180.0070.03616.49
5.6.170.0090.04016.51
5.6.160.0130.02216.43
5.6.150.0100.03816.33
5.6.140.0120.03216.55
5.6.130.0070.03616.43
5.6.120.0090.03816.55
5.6.110.0100.03616.44
5.6.100.0090.03416.52
5.6.90.0070.02516.50
5.6.80.0100.02116.29
5.6.70.0060.02316.27
5.6.60.0090.02216.25
5.6.50.0070.03616.29
5.6.40.0080.02516.22
5.6.30.0070.02116.26
5.6.20.0090.02016.23
5.6.10.0050.02616.33
5.6.00.0110.01816.28
5.5.380.0060.04116.38
5.5.370.0140.03216.35
5.5.360.0140.03616.17
5.5.350.0050.04316.33
5.5.340.0050.03816.48
5.5.330.0080.03416.34
5.5.320.0080.03716.54
5.5.310.0090.04016.35
5.5.300.0080.02916.52
5.5.290.0080.03516.36
5.5.280.0080.03616.53
5.5.270.0050.03916.47
5.5.260.0090.03416.44
5.5.250.0070.02616.31
5.5.240.0080.02216.16
5.5.230.0090.02516.29
5.5.220.0060.03616.11
5.5.210.0040.02916.16
5.5.200.0100.01916.13
5.5.190.0090.02816.17
5.5.180.0070.02916.14
5.5.170.0100.01013.98
5.5.160.0120.02516.11
5.5.150.0070.02215.91
5.5.140.0070.02216.31
5.5.130.0140.01416.15
5.5.120.0090.02016.24
5.5.110.0100.02116.23
5.5.100.0110.01916.22
5.5.90.0100.01916.15
5.5.80.0070.02315.95
5.5.70.0070.03316.23
5.5.60.0090.03416.14
5.5.50.0070.02816.08
5.5.40.0110.03416.05
5.5.30.0130.03116.16
5.5.20.0070.03816.10
5.5.10.0110.03316.16
5.5.00.0130.03116.06
5.4.450.0040.03714.37
5.4.440.0130.02914.31
5.4.430.0030.03914.28
5.4.420.0100.03314.28
5.4.410.0110.02914.24
5.4.400.0040.02514.18
5.4.390.0050.02214.26
5.4.380.0100.01614.23
5.4.370.0100.02914.18
5.4.360.0110.02914.23
5.4.350.0070.02114.25
5.4.340.0050.02414.22
5.4.330.0090.01111.86
5.4.320.0060.03014.26
5.4.310.0110.02514.25
5.4.300.0060.02014.28
5.4.290.0060.02214.27
5.4.280.0020.02514.29
5.4.270.0090.01714.26
5.4.260.0060.03014.18
5.4.250.0080.01814.25
5.4.240.0070.03014.26
5.4.230.0080.03414.26
5.4.220.0050.03514.31
5.4.210.0120.03214.26
5.4.200.0050.03514.25
5.4.190.0110.02914.26
5.4.180.0060.03414.23
5.4.170.0060.03014.29
5.4.160.0100.03214.25
5.4.150.0140.02514.16
5.4.140.0110.03013.36
5.4.130.0070.03213.34
5.4.120.0060.03213.35
5.4.110.0100.02913.33
5.4.100.0060.03413.31
5.4.90.0080.03213.31
5.4.80.0090.03313.34
5.4.70.0060.03613.34
5.4.60.0050.03613.35
5.4.50.0090.03213.35
5.4.40.0040.02113.33
5.4.30.0130.02913.38
5.4.20.0110.03113.34
5.4.10.0070.03313.36
5.4.00.0110.03013.15
5.3.290.0050.02612.79
5.3.280.0100.02612.77
5.3.270.0100.03012.75
5.3.260.0100.03412.73
5.3.250.0120.02912.73
5.3.240.0060.03612.78
5.3.230.0090.03112.77
5.3.220.0070.03312.71
5.3.210.0080.03012.74
5.3.200.0080.02312.75
5.3.190.0070.03212.74
5.3.180.0070.03212.71
5.3.170.0100.02912.76
5.3.160.0070.03212.75
5.3.150.0060.03012.74
5.3.140.0040.03412.71
5.3.130.0070.03512.71
5.3.120.0090.02212.71
5.3.110.0090.03112.74
5.3.100.0080.03112.60
5.3.90.0070.04012.60
5.3.80.0090.03112.60
5.3.70.0080.02912.60
5.3.60.0060.03512.60
5.3.50.0070.03212.60
5.3.40.0040.03712.60
5.3.30.0090.03012.60
5.3.20.0110.03012.60
5.3.10.0090.02712.60
5.3.00.0120.01912.60
5.2.170.0030.07314.07
5.2.160.0100.06014.07
5.2.150.0100.06314.07
5.2.140.0100.06714.07
5.2.130.0030.07014.07
5.2.120.0100.06014.07
5.2.110.0100.06014.07
5.2.100.0030.06714.07
5.2.90.0100.06714.07
5.2.80.0100.06014.07
5.2.70.0070.06714.07
5.2.60.0130.06314.07
5.2.50.0070.06314.07
5.2.40.0000.07014.07
5.2.30.0070.06714.07
5.2.20.0030.06314.07
5.2.10.0070.05714.07
5.2.00.0130.05314.07
5.1.60.0100.04714.07
5.1.50.0070.06014.07
5.1.40.0000.06014.07
5.1.30.0070.06314.07
5.1.20.0200.04714.07
5.1.10.0070.06014.07
5.1.00.0070.05014.07
5.0.50.0070.04714.07
5.0.40.0030.05314.07
5.0.30.0070.06314.07
5.0.20.0000.05314.07
5.0.10.0030.03714.07
5.0.00.0070.06314.07
4.4.90.0000.04314.07
4.4.80.0030.03714.07
4.4.70.0070.03714.07
4.4.60.0100.03314.07
4.4.50.0070.03714.07
4.4.40.0100.04714.07
4.4.30.0070.03314.07
4.4.20.0000.04014.07
4.4.10.0100.02714.07
4.4.00.0000.06714.07
4.3.110.0070.04014.07
4.3.100.0030.03714.07
4.3.90.0030.04014.07
4.3.80.0000.05014.07
4.3.70.0070.03714.07
4.3.60.0130.03014.07
4.3.50.0030.04014.07
4.3.40.0000.05714.07
4.3.30.0000.04014.07
4.3.20.0030.04314.07
4.3.10.0070.03014.07
4.3.00.0030.04014.07

preferences:
37.89 ms | 401 KiB | 5 Q