3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo substr('abcdefghijklmnopqrstuvwxyz', mt_rand(0,25), 1);

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)
7.4.10.0060.00915.00
7.4.00.0030.01214.72
7.3.130.0070.01014.51
7.3.120.0060.01014.72
7.3.110.0060.01014.72
7.3.100.0090.00614.58
7.3.90.0060.00614.54
7.3.80.0080.00714.80
7.3.70.0060.00514.58
7.3.60.0050.00914.61
7.3.50.0050.01014.56
7.3.40.0050.00814.62
7.3.30.0040.01014.66
7.3.20.0030.01016.55
7.3.10.0100.00616.42
7.3.00.0040.00916.39
7.2.260.0040.01514.72
7.2.250.0090.00714.91
7.2.240.0110.00614.73
7.2.230.0060.00914.78
7.2.220.0050.00514.78
7.2.210.0040.01114.84
7.2.200.0080.00514.75
7.2.190.0030.00814.88
7.2.180.0050.00814.94
7.2.170.0070.00515.01
7.2.160.0030.01314.88
7.2.150.0070.00716.64
7.2.140.0060.01016.45
7.2.130.0030.00916.72
7.2.120.0040.00816.69
7.2.110.0040.01116.70
7.2.100.0090.00916.88
7.2.90.0100.00616.77
7.2.80.0100.00716.60
7.2.70.0100.00316.62
7.2.60.0050.00516.67
7.2.50.0060.00616.64
7.2.40.0060.00616.50
7.2.30.0070.00416.71
7.2.20.0110.00316.86
7.2.10.0000.01216.83
7.2.00.0050.00917.89
7.1.330.0040.01115.64
7.1.320.0080.00815.38
7.1.310.0060.00715.56
7.1.300.0030.01015.57
7.1.290.0090.00415.58
7.1.280.0060.00815.49
7.1.270.0120.00315.51
7.1.260.0100.00315.71
7.1.250.0070.01015.41
7.1.240.0030.01015.68
7.1.230.0030.00915.59
7.1.220.0070.01015.59
7.1.210.0090.00315.61
7.1.200.0030.00915.60
7.1.190.0030.00915.72
7.1.180.0000.01115.40
7.1.170.0030.01015.45
7.1.160.0030.01015.68
7.1.150.0090.00315.71
7.1.140.0000.01015.45
7.1.130.0110.00415.39
7.1.120.0040.01215.59
7.1.110.0030.01415.49
7.1.100.0060.00315.37
7.1.90.0060.00915.50
7.1.80.0040.01115.50
7.1.70.0030.00716.09
7.1.60.0060.01117.41
7.1.50.0050.01016.14
7.1.40.0070.00715.53
7.1.30.0030.00515.63
7.1.20.0110.00415.49
7.1.10.0060.00615.62
7.1.00.0030.03519.08
7.0.330.0030.01015.11
7.0.320.0060.00915.45
7.0.310.0110.00415.36
7.0.300.0000.01215.24
7.0.290.0030.01315.30
7.0.280.0070.00415.37
7.0.270.0030.00915.13
7.0.260.0100.00715.32
7.0.250.0060.01314.97
7.0.240.0040.00815.06
7.0.230.0070.00315.38
7.0.220.0040.00815.06
7.0.210.0030.01015.43
7.0.200.0080.00315.73
7.0.190.0040.01215.09
7.0.180.0040.01115.18
7.0.170.0040.00415.13
7.0.160.0080.00415.26
7.0.150.0070.00715.03
7.0.140.0080.03518.72
7.0.130.0060.00615.34
7.0.120.0080.00415.33
7.0.110.0040.00715.21
7.0.100.0100.04017.64
7.0.90.0120.02517.59
7.0.80.0100.03017.58
7.0.70.0110.04617.55
7.0.60.0140.04517.53
7.0.50.0120.03217.81
7.0.40.0020.02916.75
7.0.30.0040.02716.71
7.0.20.0070.02216.63
7.0.10.0120.01816.64
7.0.00.0110.02316.70
5.6.400.0090.00014.29
5.6.390.0040.01114.19
5.6.380.0030.00914.37
5.6.370.0100.00014.13
5.6.360.0040.00413.95
5.6.350.0030.00714.13
5.6.340.0090.00314.23
5.6.330.0040.00814.21
5.6.320.0100.01014.53
5.6.310.0070.00713.91
5.6.300.0030.01014.42
5.6.290.0100.00314.13
5.6.280.0050.04017.63
5.6.270.0000.00814.07
5.6.260.0040.01114.27
5.6.250.0120.03917.42
5.6.240.0110.03317.35
5.6.230.0090.04417.44
5.6.220.0080.04217.34
5.6.210.0100.04117.47
5.6.200.0100.04617.48
5.6.190.0080.02517.51
5.6.180.0020.02717.51
5.6.170.0090.02517.54
5.6.160.0050.02817.78
5.6.150.0070.02217.47
5.6.140.0050.03017.69
5.6.130.0090.02317.52
5.6.120.0050.02417.69
5.6.110.0070.02817.59
5.6.100.0060.02317.37
5.6.90.0050.02517.53
5.6.80.0030.02317.21
5.6.70.0050.04517.29
5.6.60.0070.02217.37
5.6.50.0030.02717.27
5.6.40.0040.02717.30
5.6.30.0030.02517.12
5.6.20.0050.02717.08
5.6.10.0050.02517.15
5.6.00.0070.02017.11
5.5.380.0020.04717.36
5.5.370.0090.03817.29
5.5.360.0120.04017.16
5.5.350.0090.04317.37
5.5.340.0090.04617.38
5.5.330.0120.02517.51
5.5.320.0050.02517.38
5.5.310.0070.02217.44
5.5.300.0080.03817.52
5.5.290.0060.03117.34
5.5.280.0070.02717.41
5.5.270.0060.03917.50
5.5.260.0050.03817.52
5.5.250.0020.03017.41
5.5.240.0090.02017.21
5.5.230.0100.02517.26
5.5.220.0060.02817.04
5.5.210.0020.02217.15
5.5.200.0030.02417.15
5.5.190.0000.02717.19
5.5.180.0050.02317.17
5.5.170.0120.00313.79
5.5.160.0030.02517.02
5.5.150.0030.02616.98
5.5.140.0050.02217.13
5.5.130.0070.02216.96
5.5.120.0000.02717.19
5.5.110.0020.02317.01
5.5.100.0050.03717.05
5.5.90.0070.03717.08
5.5.80.0100.02317.00
5.5.70.0070.04117.16
5.5.60.0110.01916.88
5.5.50.0110.03917.03
5.5.40.0060.04117.07
5.5.30.0090.02717.03
5.5.20.0090.04116.93
5.5.10.0030.04416.84
5.5.00.0020.04816.88
5.4.450.0030.02914.88
5.4.440.0020.02415.16
5.4.430.0030.02315.17
5.4.420.0070.03015.09
5.4.410.0040.02214.98
5.4.400.0080.02215.00
5.4.390.0050.02015.02
5.4.380.0030.02114.74
5.4.370.0030.02115.00
5.4.360.0020.02314.89
5.4.350.0020.02814.67
5.4.340.0040.02215.07
5.4.330.0050.00510.72
5.4.320.0030.02014.90
5.4.310.0050.02015.03
5.4.300.0020.02214.93
5.4.290.0030.02015.01
5.4.280.0010.02414.78
5.4.270.0050.02814.90
5.4.260.0100.01514.98
5.4.250.0030.03014.88
5.4.240.0110.03514.86
5.4.230.0020.04615.04
5.4.220.0050.04114.92
5.4.210.0030.03314.85
5.4.200.0060.04014.88
5.4.190.0000.03214.94
5.4.180.0080.03414.86
5.4.170.0050.04214.86
5.4.160.0060.03314.75
5.4.150.0070.04015.05
5.4.140.0050.04213.70
5.4.130.0050.04013.61
5.4.120.0050.03813.49
5.4.110.0050.03713.54
5.4.100.0000.04313.51
5.4.90.0040.03913.61
5.4.80.0080.03713.63
5.4.70.0030.04113.66
5.4.60.0050.02413.66
5.4.50.0050.04013.65
5.4.40.0030.04413.58
5.4.30.0080.03513.62
5.4.20.0020.03513.50
5.4.10.0020.04213.60
5.4.00.0080.03013.30
5.3.290.0030.02212.48
5.3.280.0110.03112.37
5.3.270.0070.04012.42
5.3.260.0080.03712.47
5.3.250.0050.04012.46
5.3.240.0060.04012.41
5.3.230.0030.04012.42
5.3.220.0050.04012.38
5.3.210.0050.04212.31
5.3.200.0050.04012.29
5.3.190.0060.03812.27
5.3.180.0070.03812.35
5.3.170.0080.02812.48
5.3.160.0010.02312.46
5.3.150.0030.04212.46
5.3.140.0080.04212.33
5.3.130.0070.04012.27
5.3.120.0020.04012.39
5.3.110.0030.02312.52
5.3.100.0050.04012.08
5.3.90.0050.02812.19
5.3.80.0000.04412.04
5.3.70.0030.04412.06
5.3.60.0090.03812.16
5.3.50.0070.04012.13
5.3.40.0050.04312.04
5.3.30.0070.03212.03
5.3.20.0000.04312.01
5.3.10.0060.02011.77
5.3.00.0070.03711.82
5.2.170.0030.03312.35
5.2.160.0030.06312.35
5.2.150.0000.06712.35
5.2.140.0030.04012.35
5.2.130.0070.05012.35
5.2.120.0100.05712.35
5.2.110.0100.05312.35
5.2.100.0070.05712.35
5.2.90.0170.04312.35
5.2.80.0070.06012.35
5.2.70.0070.03312.35
5.2.60.0070.05712.35
5.2.50.0100.05712.35
5.2.40.0070.06012.35
5.2.30.0030.03312.35
5.2.20.0030.06712.35
5.2.10.0170.04712.35
5.2.00.0070.03312.35
5.1.60.0100.04712.35
5.1.50.0030.05312.35
5.1.40.0030.04312.35
5.1.30.0030.05712.35
5.1.20.0070.03312.35
5.1.10.0100.04712.35
5.1.00.0030.03712.35
5.0.50.0030.02712.35
5.0.40.0030.04712.35
5.0.30.0070.06012.35
5.0.20.0000.04712.35
5.0.10.0030.02312.35
5.0.00.0030.06312.35
4.4.90.0000.01712.35
4.4.80.0000.02712.35
4.4.70.0030.03012.35
4.4.60.0070.02712.35
4.4.50.0070.03312.35
4.4.40.0100.02712.35
4.4.30.0070.02312.35
4.4.20.0000.04012.35
4.4.10.0030.03012.35
4.4.00.0030.05312.35
4.3.110.0070.02312.35
4.3.100.0070.03012.35
4.3.90.0000.03712.35
4.3.80.0000.04712.35
4.3.70.0000.03712.35
4.3.60.0000.03712.35
4.3.50.0030.02712.35
4.3.40.0000.05012.35
4.3.30.0000.03712.35
4.3.20.0070.03312.35
4.3.10.0030.03312.35
4.3.00.0000.03712.35

preferences:
38.38 ms | 400 KiB | 5 Q