3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string1 = uniqid('foo', true); do { $string2 = uniqid('foo', true); } while ($string1 == $string2); ?>

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)
7.4.10.0040.01515.03
7.4.00.0150.00014.72
7.3.130.0030.00914.50
7.3.120.0140.00314.91
7.3.110.0090.00914.35
7.3.100.0040.01114.87
7.3.90.0100.00014.44
7.3.80.0030.01014.93
7.3.70.0040.01114.62
7.3.60.0030.01014.69
7.3.50.0070.00714.61
7.3.40.0030.01014.39
7.3.30.0090.00614.73
7.3.20.0060.00616.59
7.3.10.0070.01016.70
7.3.00.0100.00616.39
7.2.260.0070.00714.98
7.2.250.0060.01014.81
7.2.240.0040.01515.09
7.2.230.0100.01014.98
7.2.220.0070.00814.63
7.2.210.0060.00615.11
7.2.200.0000.01514.97
7.2.190.0060.00615.02
7.2.180.0030.01014.93
7.2.170.0110.00015.04
7.2.160.0070.00714.73
7.2.150.0070.00416.93
7.2.140.0030.00616.82
7.2.130.0110.00616.54
7.2.120.0070.00416.73
7.2.110.0060.00616.58
7.2.100.0070.00716.70
7.2.90.0060.00916.97
7.2.80.0100.00716.81
7.2.70.0000.01516.52
7.2.60.0070.01016.95
7.2.50.0140.00416.89
7.2.40.0060.00616.98
7.2.30.0070.00716.76
7.2.20.0060.01116.66
7.2.10.0140.00316.44
7.2.00.0030.01216.75
7.1.330.0130.00515.55
7.1.320.0150.00015.43
7.1.310.0040.01115.72
7.1.300.0070.01015.71
7.1.290.0110.00415.40
7.1.280.0030.01015.53
7.1.270.0030.01015.73
7.1.260.0040.01015.90
7.1.250.0060.00315.55
7.1.240.0060.00315.71
7.1.230.0070.00715.78
7.1.220.0120.00315.61
7.1.210.0040.01115.38
7.1.200.0080.00615.66
7.1.190.0070.00715.76
7.1.180.0060.00815.50
7.1.170.0090.00615.73
7.1.160.0090.00315.41
7.1.150.0030.00715.33
7.1.140.0070.00315.69
7.1.130.0100.00315.77
7.1.120.0090.00315.50
7.1.110.0040.01115.79
7.1.100.0060.01215.51
7.1.90.0090.00915.65
7.1.80.0040.01515.43
7.1.70.0050.00516.30
7.1.60.0130.00517.44
7.1.50.0060.00616.33
7.1.40.0090.00615.76
7.1.30.0100.00615.72
7.1.20.0070.01115.42
7.1.10.0060.00915.78
7.1.00.0060.02118.91
7.0.330.0140.00014.98
7.0.320.0030.00615.36
7.0.310.0100.00315.11
7.0.300.0070.01015.30
7.0.290.0090.00315.17
7.0.280.0030.00715.34
7.0.270.0030.01315.36
7.0.260.0000.00815.05
7.0.250.0060.00615.35
7.0.240.0110.00415.50
7.0.230.0030.01015.33
7.0.220.0000.01015.41
7.0.210.0080.00015.36
7.0.200.0060.00416.10
7.0.190.0030.01515.19
7.0.180.0030.01415.02
7.0.170.0100.00715.36
7.0.160.0060.00615.48
7.0.150.0040.01115.33
7.0.140.0020.04518.64
7.0.130.0040.00815.34
7.0.120.0100.00315.51
7.0.110.0000.01314.95
7.0.100.0060.00915.38
7.0.90.0030.01015.21
7.0.80.0110.00315.27
7.0.70.0070.00715.45
7.0.60.0070.04417.61
7.0.50.0020.03316.46
7.0.40.0020.03016.99
7.0.30.0120.04416.82
7.0.20.0200.03216.76
7.0.10.0000.03216.80
7.0.00.0070.03916.61
5.6.400.0080.00813.70
5.6.390.0000.01413.85
5.6.380.0060.00914.09
5.6.370.0000.01114.36
5.6.360.0030.01414.05
5.6.350.0060.00614.11
5.6.340.0030.01313.85
5.6.330.0100.00314.56
5.6.320.0110.00014.00
5.6.310.0060.00614.22
5.6.300.0030.01314.38
5.6.290.0100.00714.02
5.6.280.0070.03817.50
5.6.270.0090.00014.36
5.6.260.0030.01014.66
5.6.250.0040.00714.35
5.6.240.0090.00614.21
5.6.230.0000.01714.59
5.6.220.0030.00714.37
5.6.210.0080.04117.42
5.6.200.0100.03316.20
5.6.190.0050.04717.36
5.6.180.0140.02417.24
5.6.170.0200.03817.49
5.6.160.0050.02317.44
5.6.150.0030.02716.24
5.6.140.0090.03116.13
5.6.130.0070.04216.14
5.6.120.0040.02917.59
5.6.110.0040.04417.49
5.6.100.0100.04417.56
5.6.90.0070.04117.66
5.6.80.0070.04517.43
5.6.70.0030.00914.06
5.6.60.0070.00714.25
5.6.50.0000.01414.13
5.6.40.0060.00314.46
5.6.30.0000.01213.95
5.6.20.0080.00014.40
5.6.10.0040.00414.27
5.6.00.0090.00314.07
5.5.380.0070.00314.44
5.5.370.0080.00414.16
5.5.360.0000.01614.30
5.5.350.2180.02417.28
5.5.340.0070.04416.13
5.5.330.0030.02817.35
5.5.320.0320.03717.11
5.5.310.0150.03417.27
5.5.300.0100.03815.98
5.5.290.0080.04015.96
5.5.280.0050.04717.36
5.5.270.0050.04617.48
5.5.260.0070.04517.60
5.5.250.0070.03217.34
5.5.240.0100.03117.28
5.5.230.0040.00414.03
5.5.220.0140.00013.84
5.5.210.0000.00914.06
5.5.200.0030.00914.09
5.5.190.0060.00613.86
5.5.180.0030.01313.70
5.5.170.0030.00713.94
5.5.160.0060.00314.14
5.5.150.0040.01114.02
5.5.140.0060.00614.17
5.5.130.0040.01114.25
5.5.120.0120.00314.14
5.5.110.0030.00914.24
5.5.100.0070.00313.95
5.5.90.0050.01014.32
5.5.80.0060.00613.89
5.5.70.0030.00513.95
5.5.60.0040.01114.13
5.5.50.0090.00014.09
5.5.40.0030.01013.86
5.5.30.0040.01213.81
5.5.20.0040.01114.32
5.5.10.0070.00714.06
5.5.00.0030.00913.86
5.4.450.0160.02615.08
5.4.440.0220.02515.27
5.4.430.0170.02815.03
5.4.420.0170.02915.01
5.4.410.0150.02915.05
5.4.400.0150.04215.02
5.4.390.0170.02414.96
5.4.380.0190.03814.79
5.4.370.0200.02814.83
5.4.360.0190.03714.79
5.4.350.0150.02714.78
5.4.340.0200.03515.01
5.4.330.0090.00310.57
5.4.320.0130.04414.84
5.4.310.0160.04014.90
5.4.300.0170.03615.01
5.4.290.0120.03214.75
5.4.280.0200.03814.98
5.4.270.0180.04114.98
5.4.260.0170.03214.77
5.4.250.0170.03314.92
5.4.240.0100.02314.89
5.4.230.0130.02214.79
5.4.220.0080.03214.97
5.4.210.0130.03814.88
5.4.200.0230.03214.94
5.4.190.0190.03714.82
5.4.180.0250.02914.78
5.4.170.0180.02514.82
5.4.160.0150.02814.97
5.4.150.0180.02514.92
5.4.140.0130.02213.53
5.4.130.0150.02613.72
5.4.120.0150.03513.39
5.4.110.0180.02813.44
5.4.100.0270.01913.57
5.4.90.0160.02413.54
5.4.80.0130.02713.57
5.4.70.0130.02013.67
5.4.60.0120.02113.63
5.4.50.0170.03713.54
5.4.40.0200.02713.60
5.4.30.0150.03813.46
5.4.20.0200.03313.61
5.4.10.0080.02313.62
5.4.00.0100.02313.41
5.3.290.0150.02712.50
5.3.280.0160.03612.47
5.3.270.0180.03812.37
5.3.260.0170.02612.53
5.3.250.0170.01912.48
5.3.240.0210.02512.49
5.3.230.0200.03512.40
5.3.220.0180.03212.35
5.3.210.0140.02012.22
5.3.200.0150.04312.41
5.3.190.0130.03212.40
5.3.180.0270.03212.48
5.3.170.0170.01812.37
5.3.160.0100.02512.31
5.3.150.0150.02112.39
5.3.140.0170.03612.47
5.3.130.0220.03212.28
5.3.120.0180.03712.46
5.3.110.0130.02012.38
5.3.100.0150.02012.08
5.3.90.0120.02012.09
5.3.80.0100.02112.04
5.3.70.0140.02412.06
5.3.60.0070.02512.19
5.3.50.0100.02512.05
5.3.40.0110.02012.20
5.3.30.0100.02312.15
5.3.20.0130.01911.96
5.3.10.0100.02211.98
5.3.00.0120.02011.83
5.2.170.0170.03011.19
5.2.160.0170.02711.00
5.2.150.0100.03310.94
5.2.140.0170.02710.97
5.2.130.0130.03011.26
5.2.120.0170.02711.11
5.2.110.0130.03011.10
5.2.100.0170.03711.11
5.2.90.0200.03011.16
5.2.80.0130.04311.18
5.2.70.0100.03310.92
5.2.60.0170.02711.13
5.2.50.0130.03010.86
5.2.40.0100.03010.83
5.2.30.0100.04010.98
5.2.20.0200.02711.00
5.2.10.0130.02710.85
5.2.00.0200.02710.77
5.1.60.0130.02310.77
5.1.50.0130.02310.77
5.1.40.0130.03010.77
5.1.30.0130.02310.77
5.1.20.0170.02310.77
5.1.10.0070.03010.77
5.1.00.0100.02710.77
5.0.50.0100.01710.77
5.0.40.0070.01710.77
5.0.30.0100.02710.77
5.0.20.0100.02010.77
5.0.10.0030.02310.77
5.0.00.0070.03310.77
4.4.90.0070.01310.77
4.4.80.0070.02310.77
4.4.70.0030.01710.77
4.4.60.0070.01310.77
4.4.50.0070.01710.77
4.4.40.0070.02310.77
4.4.30.0070.03010.77
4.4.20.0030.01710.77
4.4.10.0030.01710.77
4.4.00.0000.03010.77
4.3.110.0070.01310.77
4.3.100.0100.01010.77
4.3.90.0030.02010.77
4.3.80.0070.02310.77
4.3.70.0030.01710.77
4.3.60.0070.02010.77
4.3.50.0100.02010.77
4.3.40.0100.03010.77
4.3.30.0070.01710.77
4.3.20.0030.03710.77
4.3.10.0030.03010.77
4.3.00.0030.02010.77

preferences:
31.14 ms | 401 KiB | 5 Q