3v4l.org

run code in 300+ PHP versions simultaneously
<?php function generate_string ($length = 20) { $nps = ""; for($i=0;$i<$length;$i++) { $nps .= chr( (mt_rand(1, 36) <= 26) ? mt_rand(97, 122) : mt_rand(48, 57 )); } return $nps; printf($nps);} ?>

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)
7.4.10.0080.00614.68
7.4.00.0000.01414.62
7.3.130.0080.00814.59
7.3.120.0060.01314.73
7.3.110.0060.00814.70
7.3.100.0030.01014.69
7.3.90.0060.00614.61
7.3.80.0060.00314.62
7.3.70.0030.00614.68
7.3.60.0100.00314.79
7.3.50.0040.01114.82
7.3.40.0070.00314.74
7.3.30.0040.00714.70
7.3.20.0030.00616.51
7.3.10.0060.00616.52
7.3.00.0000.01316.43
7.2.260.0090.00914.54
7.2.250.0090.00914.62
7.2.240.0100.00715.08
7.2.230.0000.01414.71
7.2.220.0040.00715.03
7.2.210.0090.00614.73
7.2.200.0070.00714.77
7.2.190.0070.00714.96
7.2.180.0070.00714.86
7.2.170.0030.01014.94
7.2.160.0090.00014.67
7.2.150.0060.00916.82
7.2.140.0120.00316.72
7.2.130.0070.00516.65
7.2.120.0050.01116.59
7.2.110.0060.00816.74
7.2.100.0050.00916.79
7.2.90.0050.00516.55
7.2.80.0050.00916.78
7.2.70.0080.00316.82
7.2.60.0090.00416.66
7.2.50.0040.00916.68
7.2.40.0030.00816.58
7.2.30.0070.00516.62
7.2.20.0030.01016.42
7.2.10.0080.00616.70
7.2.00.0040.01016.58
7.1.330.0000.01115.84
7.1.320.0080.00815.56
7.1.310.0030.01315.75
7.1.300.0070.00615.49
7.1.290.0070.00715.59
7.1.280.0060.00615.56
7.1.270.0030.01015.66
7.1.260.0050.00515.61
7.1.250.0100.00315.50
7.1.240.0020.00815.52
7.1.230.0070.00415.57
7.1.220.0040.00715.54
7.1.210.0100.00215.66
7.1.200.0000.00915.56
7.1.190.0020.00915.53
7.1.180.0000.00915.57
7.1.170.0080.00515.34
7.1.160.0060.00315.51
7.1.150.0070.00515.62
7.1.140.0060.00315.78
7.1.130.0030.00615.28
7.1.120.0040.00815.53
7.1.110.0050.00815.66
7.1.100.0020.01115.52
7.1.90.0060.00715.58
7.1.80.0070.00915.46
7.1.70.0070.00616.07
7.1.60.0010.00816.10
7.1.50.0070.00616.08
7.1.40.0080.00515.44
7.1.30.0050.00915.55
7.1.20.0040.01015.47
7.1.10.0030.00815.56
7.1.00.0050.01517.84
7.0.330.0050.00715.33
7.0.320.0040.00615.25
7.0.310.0030.00814.96
7.0.300.0050.00714.90
7.0.290.0050.00715.24
7.0.280.0040.00815.21
7.0.270.0020.00815.21
7.0.260.0050.00715.12
7.0.250.0060.00515.42
7.0.240.0000.00915.29
7.0.230.0080.00715.37
7.0.220.0070.00615.36
7.0.210.0080.00515.21
7.0.200.0030.01015.66
7.0.190.0110.00115.26
7.0.180.0020.00815.15
7.0.170.0070.00415.15
7.0.160.0070.00515.07
7.0.150.0030.00815.21
7.0.140.0030.03117.57
7.0.130.0030.01015.02
7.0.120.0030.01215.07
7.0.110.0030.01015.17
7.0.100.0060.00715.21
7.0.90.0020.01015.32
7.0.80.0030.00815.16
7.0.70.0330.02616.71
7.0.60.0290.02216.79
7.0.50.0320.03316.75
7.0.40.0060.03615.61
7.0.30.0070.03115.52
7.0.20.0060.02915.54
7.0.10.0080.03215.55
7.0.00.0060.03315.53
5.6.400.0030.00914.10
5.6.390.0040.01114.21
5.6.380.0050.00813.88
5.6.370.0040.00914.29
5.6.360.0090.00713.90
5.6.350.0030.01014.10
5.6.340.0030.00814.18
5.6.330.0040.00714.22
5.6.320.0090.00213.96
5.6.310.0080.00514.06
5.6.300.0060.00813.83
5.6.290.0060.00813.88
5.6.280.0060.02716.40
5.6.270.0070.00514.21
5.6.260.0050.01114.07
5.6.250.0040.00914.13
5.6.240.0040.00814.05
5.6.230.0030.01313.94
5.6.220.0070.01716.17
5.6.210.0060.03516.24
5.6.200.0040.03416.32
5.6.190.0040.02416.37
5.6.180.0080.03016.37
5.6.170.0080.03016.38
5.6.160.0040.03516.33
5.6.150.0120.03016.49
5.6.140.0070.03316.39
5.6.130.0080.03016.40
5.6.120.0070.02516.32
5.6.110.0100.02816.28
5.6.100.0060.03516.45
5.6.90.0080.01916.48
5.6.80.0060.03216.16
5.6.70.0090.02516.24
5.6.60.0100.03016.13
5.6.50.0050.03516.00
5.6.40.0050.01816.03
5.6.30.0030.02116.24
5.6.20.0050.02115.99
5.6.10.0120.02716.09
5.6.00.0050.02616.09
5.5.380.0020.00512.45
5.5.370.0060.00512.34
5.5.360.0050.01715.04
5.5.350.0050.03415.19
5.5.340.0090.02615.31
5.5.330.0060.02215.22
5.5.320.0060.03015.17
5.5.310.0080.02415.13
5.5.300.0060.02215.36
5.5.290.0110.02715.28
5.5.280.0030.03315.21
5.5.270.0060.02215.33
5.5.260.0080.02915.15
5.5.250.0040.02615.19
5.5.240.0020.03015.03
5.5.230.0090.02815.06
5.5.220.0070.02715.02
5.5.210.0070.03014.97
5.5.200.0050.03115.03
5.5.190.0050.01815.08
5.5.180.0050.03315.10
5.5.170.0060.00312.34
5.5.160.0090.01914.96
5.5.150.0050.03114.96
5.5.140.0070.02814.91
5.5.130.0040.02515.04
5.5.120.0070.02815.07
5.5.110.0070.01914.92
5.5.100.0100.02714.91
5.5.90.0050.02914.91
5.5.80.0080.02814.93
5.5.70.0070.02715.02
5.5.60.0050.02314.92
5.5.50.0030.02214.98
5.5.40.0030.03215.06
5.5.30.0020.02114.94
5.5.20.0010.02714.96
5.5.10.0050.02714.88
5.5.00.0080.03014.91
5.4.450.0090.02714.55
5.4.440.0070.03114.57
5.4.430.0030.02114.55
5.4.420.0030.03014.52
5.4.410.0050.02414.50
5.4.400.0050.01814.47
5.4.390.0060.03014.51
5.4.380.0050.03114.45
5.4.370.0030.02914.45
5.4.360.0110.02314.45
5.4.350.0040.01814.49
5.4.340.0040.02814.45
5.4.330.0050.00412.15
5.4.320.0050.02914.50
5.4.310.0050.03114.45
5.4.300.0070.02514.47
5.4.290.0060.02214.42
5.4.280.0050.01814.41
5.4.270.0060.03114.45
5.4.260.0010.01914.49
5.4.250.0070.01214.46
5.4.240.0070.02714.41
5.4.230.0080.02814.41
5.4.220.0000.03014.44
5.4.210.0040.02014.44
5.4.200.0040.02114.45
5.4.190.0080.01814.41
5.4.180.0040.03014.39
5.4.170.0050.03214.44
5.4.160.0060.03114.38
5.4.150.0050.03014.47
5.4.140.0040.03013.57
5.4.130.0050.01913.55
5.4.120.0020.03013.55
5.4.110.0030.02013.60
5.4.100.0090.02213.55
5.4.90.0070.02813.58
5.4.80.0010.02513.58
5.4.70.0020.02113.58
5.4.60.0090.01913.58
5.4.50.0020.03213.57
5.4.40.0040.02913.60
5.4.30.0080.01813.53
5.4.20.0050.02913.58
5.4.10.0020.02713.54
5.4.00.0030.02513.40
5.3.290.0050.02913.03
5.3.280.0040.02413.00
5.3.270.0040.03012.99
5.3.260.0030.02712.97
5.3.250.0040.02712.96
5.3.240.0040.02712.95
5.3.230.0060.02912.99
5.3.220.0070.02812.99
5.3.210.0050.02412.95
5.3.200.0030.03112.95
5.3.190.0040.03212.97
5.3.180.0030.03012.96
5.3.170.0040.02912.94
5.3.160.0040.03012.96
5.3.150.0030.02412.97
5.3.140.0040.02912.95
5.3.130.0030.03112.96
5.3.120.0070.02712.95
5.3.110.0060.02412.98
5.3.100.0090.02412.79
5.3.90.0030.02912.75
5.3.80.0030.02412.79
5.3.70.0100.02712.73
5.3.60.0040.01812.81
5.3.50.0040.03112.75
5.3.40.0040.01812.72
5.3.30.0040.03012.75
5.3.20.0030.02512.63
5.3.10.0080.02412.69
5.3.00.0040.02812.66
5.2.170.0060.03411.56
5.2.160.0040.03311.56
5.2.150.0050.03511.56
5.2.140.0030.02811.56
5.2.130.0090.02211.56
5.2.120.0080.02211.56
5.2.110.0080.02811.56
5.2.100.0050.02511.56
5.2.90.0030.02911.56
5.2.80.0040.03111.56
5.2.70.0050.03411.56
5.2.60.0090.02311.56
5.2.50.0030.03511.56
5.2.40.0030.03411.56
5.2.30.0030.02311.56
5.2.20.0030.02011.56
5.2.10.0030.03011.56
5.2.00.0000.02611.56
5.1.60.0030.02911.56
5.1.50.0000.03211.56
5.1.40.0010.02511.56
5.1.30.0050.03111.56
5.1.20.0000.02911.56
5.1.10.0030.02511.56
5.1.00.0050.02811.56
5.0.50.0060.02111.56
5.0.40.0000.02711.56
5.0.30.0030.03511.56
5.0.20.0000.02311.56
5.0.10.0070.02211.56
5.0.00.0050.03011.56
4.4.90.0030.01311.56
4.4.80.0040.01811.56
4.4.70.0020.02111.56
4.4.60.0030.02011.56
4.4.50.0010.02011.56
4.4.40.0050.02511.56
4.4.30.0030.01811.56
4.4.20.0010.01811.56
4.4.10.0020.01911.56
4.4.00.0020.02711.56
4.3.110.0000.01711.56
4.3.100.0050.01811.56
4.3.90.0050.01211.56
4.3.80.0020.03011.56
4.3.70.0050.01711.56
4.3.60.0000.01411.56
4.3.50.0040.01211.56
4.3.40.0030.02511.56
4.3.30.0000.02011.56
4.3.20.0020.01911.56
4.3.10.0020.01711.56
4.3.00.0000.01811.56

preferences:
39.42 ms | 400 KiB | 5 Q