3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "My Name is Fred"; $i = 0; while( $d = $str[$i] ) { if( $d == " "){ $out = " ".$temp.$out; $temp = ""; }else{ $temp.=$d; } $i++; } echo $temp.$out; ?>

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)
8.3.40.0100.00719.00
8.3.30.0140.00019.22
8.3.20.0050.00320.38
8.3.10.0080.00023.48
8.3.00.0080.00017.50
8.2.170.0090.00622.96
8.2.160.0080.00820.45
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0000.00726.16
8.2.120.0000.00721.09
8.2.110.0050.00322.25
8.2.100.0130.00317.97
8.2.90.0000.00919.39
8.2.80.0030.00617.97
8.2.70.0040.00417.75
8.2.60.0070.00018.05
8.2.50.0030.00618.07
8.2.40.0030.00717.91
8.2.30.0030.00518.24
8.2.20.0000.00717.70
8.2.10.0000.00718.00
8.2.00.0040.00417.76
8.1.270.0040.00424.02
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00023.88
8.1.230.0060.00619.00
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0050.00317.22
8.1.180.0000.00818.10
8.1.170.0000.00818.44
8.1.160.0000.00721.93
8.1.150.0000.00718.89
8.1.140.0000.00717.45
8.1.130.0000.00717.83
8.1.120.0040.00417.46
8.1.110.0000.00717.49
8.1.100.0000.00717.45
8.1.90.0000.00717.43
8.1.80.0030.00417.45
8.1.70.0000.00717.45
8.1.60.0040.00417.59
8.1.50.0050.00317.54
8.1.40.0060.00317.48
8.1.30.0000.00817.61
8.1.20.0070.00017.49
8.1.10.0050.00217.48
8.1.00.0050.00217.48
8.0.300.0040.00418.77
8.0.290.0000.00716.88
8.0.280.0030.00318.45
8.0.270.0080.00317.25
8.0.260.0000.00617.26
8.0.250.0030.00317.04
8.0.240.0040.00416.99
8.0.230.0030.00316.94
8.0.220.0040.00416.93
8.0.210.0070.00016.82
8.0.200.0000.00616.91
8.0.190.0050.00217.06
8.0.180.0050.00316.95
8.0.170.0040.00416.89
8.0.160.0000.00716.96
8.0.150.0030.00516.87
8.0.140.0000.00716.89
8.0.130.0050.00013.39
8.0.120.0050.00216.94
8.0.110.0040.00316.95
8.0.100.0070.00016.89
8.0.90.0070.00016.90
8.0.80.0060.00916.98
8.0.70.0030.00516.79
8.0.60.0000.00817.02
8.0.50.0040.00416.98
8.0.30.0120.00817.10
8.0.20.0100.00817.40
8.0.10.0050.00317.12
8.0.00.0090.00916.75
7.4.330.0000.00515.15
7.4.320.0000.00616.46
7.4.300.0000.00616.61
7.4.290.0030.00316.50
7.4.280.0060.00316.59
7.4.270.0040.00416.51
7.4.260.0030.00316.55
7.4.250.0040.00416.57
7.4.240.0030.00416.48
7.4.230.0030.00316.30
7.4.220.0130.00516.71
7.4.210.0030.01616.67
7.4.200.0070.00016.58
7.4.160.0070.01416.72
7.4.150.0100.00717.40
7.4.140.0100.01417.86
7.4.130.0050.01516.59
7.4.120.0100.00916.56
7.4.110.0000.01616.47
7.4.100.0040.01416.39
7.4.90.0060.01016.52
7.4.80.0130.01619.39
7.4.70.0110.01216.53
7.4.60.0000.01516.51
7.4.50.0070.00016.80
7.4.40.0090.00616.35
7.4.30.0090.00916.43
7.4.00.0050.01314.91
7.3.330.0030.00313.21
7.3.320.0040.00413.23
7.3.310.0000.00916.35
7.3.300.0030.00316.41
7.3.290.0030.01016.39
7.3.280.0080.00916.41
7.3.270.0070.01117.40
7.3.260.0070.01016.71
7.3.250.0080.01416.64
7.3.240.0030.01316.61
7.3.230.0060.01016.39
7.3.210.0080.00816.50
7.3.200.0030.01419.39
7.3.190.0100.00716.61
7.3.180.0140.00716.56
7.3.170.0090.00616.48
7.3.160.0170.00016.33
7.3.120.0100.00915.05
7.3.110.0080.00814.85
7.3.100.0030.01014.63
7.3.90.0030.01014.89
7.3.80.0030.01014.95
7.3.70.0040.00914.59
7.3.60.0030.01014.91
7.3.50.0040.00814.72
7.3.40.0070.01014.93
7.3.30.0070.00714.77
7.3.20.0070.00716.83
7.3.10.0030.00816.55
7.3.00.0030.00816.54
7.2.330.0130.00616.70
7.2.320.0120.01216.80
7.2.310.0100.01016.43
7.2.300.0100.01016.76
7.2.290.0110.00516.40
7.2.250.0070.01415.25
7.2.240.0080.00814.85
7.2.230.0030.01214.96
7.2.220.0100.00615.02
7.2.210.0000.01415.31
7.2.200.0060.00914.97
7.2.190.0070.00714.99
7.2.180.0040.00715.09
7.2.170.0100.00715.28
7.2.130.0060.00916.98
7.2.120.0120.00616.70
7.2.110.0000.01117.04
7.2.100.0070.00716.77
7.2.90.0040.01117.00
7.2.80.0020.01316.84
7.2.70.0030.00916.68
7.2.60.0060.00916.72
7.2.50.0020.01016.84
7.2.40.0060.01417.62
7.2.30.1270.01117.37
7.2.20.0740.01017.24
7.2.10.0660.01417.22
7.2.00.1880.00917.53
7.1.330.0090.00615.55
7.1.320.0060.00615.75
7.1.310.0060.01015.75
7.1.300.0070.00715.75
7.1.290.0040.01115.74
7.1.280.0040.01415.84
7.1.270.0110.00415.77
7.1.260.0060.00315.70
7.1.250.0070.00315.75
7.1.200.0090.00315.56
7.1.160.0190.00916.69
7.1.150.3910.01616.53
7.1.140.0360.01316.81
7.1.130.0430.01716.79
7.1.120.0770.01116.87
7.1.110.0130.01216.09
7.1.100.0080.01515.95
7.1.90.0120.01215.98
7.1.80.1200.01116.20
7.1.70.0090.00616.29
7.1.60.0250.01326.22
7.1.50.0670.01224.84
7.1.40.1440.02332.48
7.1.30.1530.01632.50
7.1.20.1430.01932.73
7.1.10.0920.01314.79
7.1.00.0230.04318.63
7.0.290.0700.01516.29
7.0.270.4220.01516.52
7.0.260.0170.01116.19
7.0.250.0170.01616.02
7.0.240.0170.01116.07
7.0.230.0140.00816.16
7.0.220.4390.01215.95
7.0.210.1370.01314.91
7.0.200.0110.00915.82
7.0.190.1390.01314.89
7.0.180.1490.01414.39
7.0.170.1260.01314.47
7.0.160.1160.01414.51
7.0.150.0910.01614.37
7.0.140.0470.04118.46
7.0.130.0140.00814.64
7.0.120.0640.00814.64
7.0.110.0790.01214.61
7.0.100.3130.01314.60
7.0.90.0860.01614.30
7.0.80.0160.01314.75
7.0.70.0760.01514.59
7.0.60.0300.02517.10
7.0.50.0300.04816.22
7.0.40.0450.04817.49
7.0.30.0200.02217.46
7.0.20.0470.03817.20
7.0.10.0350.03117.42
7.0.00.0240.04317.51
5.6.300.0200.08420.55
5.6.290.0200.07020.73
5.6.280.0100.06620.88
5.6.270.0200.05820.76
5.6.260.0210.07120.73
5.6.250.0190.06020.95
5.6.240.0330.06920.75
5.6.230.0200.07320.90
5.6.220.0250.06720.72
5.6.210.0120.05720.82
5.6.200.0070.05419.52
5.6.190.0160.05320.59
5.6.180.0160.05320.65
5.6.170.0170.07220.69
5.6.160.0150.06320.56
5.6.150.0130.05019.50
5.6.140.0120.05819.44
5.6.130.0160.08019.46
5.6.120.0130.05920.94
5.6.110.0170.08220.88
5.6.100.0150.05620.99
5.6.90.0110.06520.84
5.6.80.0170.06720.25
5.6.70.2400.04820.24
5.6.60.0240.07420.11
5.6.50.0200.06120.29
5.6.40.0170.06720.28
5.6.30.0190.07420.27
5.6.20.0190.06120.06
5.6.10.0140.05520.23
5.6.00.0170.07320.16
5.5.380.0190.07117.39
5.5.370.0200.07517.39
5.5.360.0190.07517.39
5.5.350.0140.07118.95
5.5.340.0080.06917.88
5.5.330.0130.07119.15
5.5.320.0310.06219.19
5.5.310.0220.06619.07
5.5.300.0110.05817.92
5.5.290.0220.06517.87
5.5.280.0150.05519.44
5.5.270.0170.05319.27
5.5.260.0140.06719.27
5.5.250.0140.05419.14
5.5.240.2130.05118.70
5.5.230.0160.06117.37
5.5.220.0170.06617.43
5.5.210.0180.06117.38
5.5.200.0190.06617.10
5.5.190.0200.06417.41
5.5.180.0140.05917.16
5.5.160.0190.06117.14
5.5.150.0170.07717.05
5.5.140.0170.07117.31
5.5.130.0230.06917.30
5.5.120.0170.07017.41
5.5.110.0160.06017.09
5.5.100.0240.06517.21
5.5.90.0150.05717.02
5.5.80.0200.06317.13
5.5.70.0190.05017.18
5.5.60.0230.06617.14
5.5.50.0210.06917.12
5.5.40.0150.05417.21
5.5.30.0180.05717.28
5.5.20.0210.05117.11
5.5.10.0200.07016.96
5.5.00.0250.06917.29
5.4.450.0120.05519.21
5.4.440.0280.05919.25
5.4.430.0200.05419.34
5.4.420.0180.05319.28
5.4.410.0150.05519.33
5.4.400.0450.05619.10
5.4.390.0130.06119.01
5.4.380.0240.06518.82
5.4.370.0300.06018.83
5.4.360.0300.06218.70
5.4.350.0360.05018.81
5.4.340.0230.05618.77
5.4.320.0180.05415.71
5.4.310.0160.05615.74
5.4.300.0160.06115.73
5.4.290.0110.07015.71
5.4.280.0210.06215.62
5.4.270.0170.05815.70
5.4.260.0130.05515.71
5.4.250.0130.05115.63
5.4.240.0120.05615.61
5.4.230.0180.05815.69
5.4.220.0140.06115.75
5.4.210.0120.05115.71
5.4.200.0150.06115.65
5.4.190.0100.04915.68
5.4.180.0160.05515.66
5.4.170.0140.05615.67
5.4.160.0140.04315.55
5.4.150.0140.05815.64
5.4.140.0110.05014.30
5.4.130.0150.05014.21
5.4.120.0130.04514.26
5.4.110.0140.04614.28
5.4.100.0120.04314.27
5.4.90.0090.04714.29
5.4.80.0100.05114.15
5.4.70.0100.04414.25
5.4.60.0140.04114.26
5.4.50.0100.04614.27
5.4.40.0150.04714.14
5.4.30.0120.04614.14
5.4.20.0090.05814.21
5.4.10.0080.05114.11
5.4.00.0100.04813.62
5.3.290.0120.05413.80
5.3.280.0130.05113.67
5.3.270.0100.04713.75
5.3.260.0110.05913.66
5.3.250.0110.05413.56
5.3.240.0120.05513.57
5.3.230.0120.05613.72
5.3.220.0120.05513.62
5.3.210.0140.05313.59
5.3.200.0110.04413.70
5.3.190.0120.04413.61
5.3.180.0100.04713.64
5.3.170.0130.05013.71
5.3.160.0180.04913.65
5.3.150.0120.04113.68
5.3.140.0080.05113.57
5.3.130.0130.04813.67
5.3.120.0120.04713.61
5.3.110.0110.05013.56
5.3.100.0090.05513.13
5.3.90.0120.05213.10
5.3.80.0130.04513.13
5.3.70.0150.04813.05
5.3.60.0150.05113.07
5.3.50.0120.05113.05
5.3.40.0110.04613.06
5.3.30.0120.04112.92
5.3.20.0100.04312.73
5.3.10.0110.04012.77
5.3.00.0110.05312.75
5.2.170.0070.04610.12
5.2.160.0040.04010.13
5.2.150.0130.03910.06
5.2.140.0070.04710.18
5.2.130.0080.03510.02
5.2.120.0080.03510.23
5.2.110.0100.04010.18
5.2.100.0080.04010.14
5.2.90.0080.04210.08
5.2.80.0100.04210.17
5.2.70.0050.03910.07
5.2.60.0090.0369.97
5.2.50.0130.04210.14
5.2.40.0060.03510.07
5.2.30.0070.0369.95
5.2.20.0090.03810.04
5.2.10.0060.0369.91
5.2.00.0080.0409.77
5.1.60.0080.0359.05
5.1.50.0090.0339.10
5.1.40.0070.0309.15
5.1.30.0080.0369.39
5.1.20.0090.0309.40
5.1.10.0070.0349.16
5.1.00.0090.0349.20
5.0.50.0090.0317.64
5.0.40.0050.0277.54
5.0.30.0080.0377.38
5.0.20.0090.0277.37
5.0.10.0050.0347.36
5.0.00.0100.0487.36
4.4.90.0070.0196.63
4.4.80.0040.0226.62
4.4.70.0100.0266.62
4.4.60.0040.0236.62
4.4.50.0060.0176.62
4.4.40.0070.0326.59
4.4.30.0060.0186.62
4.4.20.0060.0216.66
4.4.10.0050.0216.66
4.4.00.0040.0336.62
4.3.110.0030.0216.57
4.3.100.0050.0196.57
4.3.90.0050.0186.55
4.3.80.0060.0316.53
4.3.70.0060.0176.55
4.3.60.0040.0186.55
4.3.50.0050.0186.55
4.3.40.0050.0316.51
4.3.30.0040.0205.88
4.3.20.0020.0225.87
4.3.10.0050.0225.85
4.3.00.0090.02412.22

preferences:
40.51 ms | 400 KiB | 5 Q