3v4l.org

run code in 300+ PHP versions simultaneously
<?php ob_start(); $time = microtime(1); $i = 0; while($i++ < 10000) echo'abcdef','abcdef','abcdef','abcdef','abcdef','abcdef','abcdef','abcdef'; ob_end_clean(); echo (microtime(1)-$time)." seconds for commas"; echo "\n"; ob_start(); $time = microtime(1); $i = 0; while($i++ < 10000) echo'abcdef'.'abcdef'.'abcdef'.'abcdef'.'abcdef'.'abcdef'.'abcdef'.'abcdef'; ob_end_clean(); echo (microtime(1)-$time)." seconds for dot";

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)
7.4.00.0030.01915.21
7.3.120.0030.02115.26
7.3.110.0070.01715.33
7.3.100.0100.01015.47
7.3.90.0090.00915.21
7.3.80.0070.01115.16
7.3.70.0070.01114.97
7.3.60.0030.01415.36
7.3.50.0110.00614.95
7.3.40.0000.01315.13
7.3.30.0030.01715.30
7.3.20.0120.00616.66
7.3.10.0090.00316.58
7.3.00.0060.01316.61
7.2.250.0030.01915.49
7.2.240.0060.01815.73
7.2.230.0000.01915.44
7.2.220.0030.01215.59
7.2.210.0030.01715.66
7.2.200.0030.01415.57
7.2.190.0090.00915.09
7.2.180.0060.01515.47
7.2.170.0030.00915.60
7.2.160.0040.01515.13
7.2.150.0100.00716.86
7.2.140.0080.01217.01
7.2.130.0070.00917.00
7.2.120.0060.00916.75
7.2.110.0010.01216.97
7.2.100.0020.01316.71
7.2.90.0050.01216.87
7.2.80.0080.00916.99
7.2.70.0090.00916.88
7.2.60.0100.01216.85
7.2.50.0090.01016.86
7.2.40.0050.01216.78
7.2.30.0070.01016.87
7.2.20.0070.01116.97
7.2.10.0060.01116.89
7.2.00.0080.01017.79
7.1.330.0070.00715.88
7.1.320.0090.00915.63
7.1.310.0040.01515.70
7.1.300.0030.01415.66
7.1.290.0040.00815.70
7.1.280.0070.01015.39
7.1.270.0070.01015.68
7.1.260.0070.00715.69
7.1.250.0100.01115.79
7.1.240.0040.01315.66
7.1.230.0080.01015.66
7.1.220.0020.01415.57
7.1.210.0060.01215.66
7.1.200.0070.01215.67
7.1.190.0050.01015.77
7.1.180.0030.01215.83
7.1.170.0050.01115.50
7.1.160.0060.01115.63
7.1.150.0080.01015.62
7.1.140.0050.01015.67
7.1.130.0050.01315.66
7.1.120.0090.00615.69
7.1.110.0020.01415.66
7.1.100.0080.01015.66
7.1.90.0030.01315.74
7.1.80.0110.00915.84
7.1.70.0100.00616.29
7.1.60.0050.01116.10
7.1.50.0030.01216.00
7.1.40.0090.00915.85
7.1.30.0070.01115.49
7.1.20.0070.01015.58
7.1.10.0050.01315.80
7.1.00.0030.03417.89
7.0.330.0050.00815.41
7.0.320.0070.01215.34
7.0.310.0030.01415.36
7.0.300.0060.01115.30
7.0.290.0050.01315.31
7.0.280.0020.01515.42
7.0.270.0030.01315.25
7.0.260.0050.01015.45
7.0.250.0040.01115.28
7.0.240.0080.01015.23
7.0.230.0060.01115.36
7.0.220.0030.01215.18
7.0.210.0090.00715.35
7.0.200.0060.01215.72
7.0.190.0080.01215.24
7.0.180.0050.01315.19
7.0.170.0000.02015.43
7.0.160.0060.00915.45
7.0.150.0000.01615.27
7.0.140.0070.03117.49
7.0.130.0050.01215.43
7.0.120.0000.01815.32
7.0.110.0070.03517.07
7.0.100.0060.03617.11
7.0.90.0090.03317.02
7.0.80.0050.03117.15
7.0.70.0080.03316.90
7.0.60.0030.03917.12
7.0.50.0040.04117.03
7.0.40.0120.02815.51
7.0.30.0090.03415.57
7.0.20.0040.03315.62
7.0.10.0110.03315.50
7.0.00.0060.03415.57
5.6.400.0070.01814.75
5.6.390.0130.01014.93
5.6.380.0050.01814.72
5.6.370.0060.01614.84
5.6.360.0050.01914.86
5.6.350.0060.01614.96
5.6.340.0070.01414.96
5.6.330.0090.01214.84
5.6.320.0050.01814.55
5.6.310.0040.01814.76
5.6.300.0070.01914.55
5.6.290.0090.01614.74
5.6.280.0040.03916.83
5.6.270.0070.01914.78
5.6.260.0040.04016.90
5.6.250.0080.03717.02
5.6.240.0040.04316.87
5.6.230.0060.04016.77
5.6.220.0060.04316.82
5.6.210.0110.03716.83
5.6.200.0090.03716.88
5.6.190.0080.04216.92
5.6.180.0080.04016.99
5.6.170.0090.03716.81
5.6.160.0050.04316.82
5.6.150.0090.03516.87
5.6.140.0070.04016.94
5.6.130.0100.03616.85
5.6.120.0050.04116.86
5.6.110.0050.04316.85
5.6.100.0050.04316.98
5.6.90.0080.03916.84
5.6.80.0080.03716.43
5.6.70.0110.03216.57
5.6.60.0080.03716.70
5.6.50.0070.03916.53
5.6.40.0080.03716.64
5.6.30.0010.04216.61
5.6.20.0070.03916.70
5.6.10.0050.03916.66
5.6.00.0090.03016.70
5.5.380.0030.04014.79
5.5.370.0040.04114.88
5.5.360.0040.03914.79
5.5.350.0040.04114.66
5.5.340.0050.04115.00
5.5.330.0050.04014.90
5.5.320.0080.03314.96
5.5.310.0060.03814.66
5.5.300.0060.04114.97
5.5.290.0110.03314.76
5.5.280.0050.03214.93
5.5.270.0070.03914.72
5.5.260.0060.03914.81
5.5.250.0070.03814.76
5.5.240.0050.03514.62
5.5.230.0090.03514.75
5.5.220.0070.03714.62
5.5.210.0030.03714.76
5.5.200.0050.03914.45
5.5.190.0070.03814.66
5.5.180.0070.03914.68
5.5.170.0050.01412.97
5.5.160.0060.04014.64
5.5.150.0070.03714.62
5.5.140.0080.03814.70
5.5.130.0080.03814.67
5.5.120.0060.04314.77
5.5.110.0070.04114.54
5.5.100.0070.03514.47
5.5.90.0060.03314.60
5.5.80.0090.03614.60
5.5.70.0030.04014.58
5.5.60.0100.03214.36
5.5.50.0090.03414.47
5.5.40.0120.03114.27
5.5.30.0070.03814.56
5.5.20.0020.03914.44
5.5.10.0070.03614.47
5.5.00.0050.03814.53
5.4.450.0080.03414.08
5.4.440.0050.03814.27
5.4.430.0030.03914.21
5.4.420.0050.03714.22
5.4.410.0100.03114.33
5.4.400.0060.03513.85
5.4.390.0070.03714.05
5.4.380.0050.03913.99
5.4.370.0070.04113.93
5.4.360.0080.03213.97
5.4.350.0060.04014.03
5.4.340.0120.03314.27
5.4.330.0100.01611.52
5.4.320.0080.03714.15
5.4.310.0070.03514.03
5.4.300.0090.03214.11
5.4.290.0100.03614.13
5.4.280.0050.04114.14
5.4.270.0080.03313.98
5.4.260.0050.04214.17
5.4.250.0050.04214.08
5.4.240.0090.03313.97
5.4.230.0080.03614.15
5.4.220.0100.03314.06
5.4.210.0080.03614.15
5.4.200.0120.03013.98
5.4.190.0030.03914.10
5.4.180.0090.03313.99
5.4.170.0040.03814.19
5.4.160.0050.03814.01
5.4.150.0030.03914.04
5.4.140.0040.03113.11
5.4.130.0080.03713.04
5.4.120.0020.04213.17
5.4.110.0090.03213.12
5.4.100.0070.03812.96
5.4.90.0090.03413.02
5.4.80.0030.04113.17
5.4.70.0090.03513.03
5.4.60.0080.03313.00
5.4.50.0070.03713.17
5.4.40.0030.04013.17
5.4.30.0070.02713.10
5.4.20.0050.03813.14
5.4.10.0030.04013.11
5.4.00.0050.03413.11
5.3.290.0080.03712.44
5.3.280.0080.03512.38
5.3.270.0020.04212.42
5.3.260.0090.03312.46
5.3.250.0020.03712.47
5.3.240.0030.03012.39
5.3.230.0070.03712.36
5.3.220.0040.02812.32
5.3.210.0070.03212.28
5.3.200.0060.03012.38
5.3.190.0100.03212.37
5.3.180.0060.03612.45
5.3.170.0080.03312.36
5.3.160.0100.03312.44
5.3.150.0070.03012.38
5.3.140.0050.03112.49
5.3.130.0050.03412.43
5.3.120.0060.04012.35
5.3.110.0070.03412.40
5.3.100.0080.04012.20
5.3.90.0060.03712.28
5.3.80.0080.03412.06
5.3.70.0080.03612.15
5.3.60.0030.04012.19
5.3.50.0030.03712.18
5.3.40.0070.03512.17
5.3.30.0040.03812.20
5.3.20.0070.03612.08
5.3.10.0050.03511.93
5.3.00.0080.03211.91
5.2.170.0100.03211.34
5.2.160.0030.04511.30
5.2.150.0070.03011.30
5.2.140.0070.04011.37
5.2.130.0020.03711.31
5.2.120.0030.04411.28
5.2.110.0050.04311.26
5.2.100.0030.03711.29
5.2.90.0020.04511.27
5.2.80.0080.03811.28
5.2.70.0050.03911.20
5.2.60.0070.03711.26
5.2.50.0030.04011.23
5.2.40.0120.03711.21
5.2.30.0050.03911.33
5.2.20.0050.03711.21
5.2.10.0090.03411.12
5.2.00.0070.03911.13
5.1.60.0000.03610.80
5.1.50.0020.04010.68
5.1.40.0100.02610.65
5.1.30.0100.03010.91
5.1.20.0020.04010.85
5.1.10.0020.04110.71
5.1.00.0050.03410.70
5.0.50.0070.03510.30
5.0.40.0050.03310.30
5.0.30.0030.04310.30
5.0.20.0070.03310.30
5.0.10.0020.03610.30
5.0.00.0030.03710.30
4.4.90.0020.03310.30
4.4.80.0020.03210.30
4.4.70.0030.03010.30
4.4.60.0020.03110.30
4.4.50.0020.02210.30
4.4.40.0060.03510.30
4.4.30.0050.02910.30
4.4.20.0050.02910.30
4.4.10.0020.03210.30
4.4.00.0020.03710.30
4.3.110.0050.02910.30
4.3.100.0020.02610.30
4.3.90.0030.03110.30
4.3.80.0020.02910.30
4.3.70.0070.02610.30
4.3.60.0020.03210.30
4.3.50.0000.03410.30
4.3.40.0000.04010.30
4.3.30.0030.02710.30
4.3.20.0000.03010.30
4.3.10.0000.03610.30
4.3.00.0020.02610.30

preferences:
32.36 ms | 401 KiB | 5 Q