Hi I was hoping that maybe someone could help me with a small piece of C code. I have a number of files, which are all of similar layout ie. three lines of text and 5-6 columns of numerical data. I need to add each of the elements of the second column in one file to their counterparts in the second... (17 Replies)
Hi,
How can I remove all non numerical data from line, so I don't want to delete the line but to have only the numbers.
e.g.:
#########
123
aaa124
125bbb
126
127
#########
So I want all the leading and trailing non numerical stuff(letters/white space/tabs anything else except... (10 Replies)
Hi All,
I have a .csv file with 3 columns called nLats, nLongs, and fRes. in following format :
"nLats","nLongs","fRes"
0,0,-1
0,1,-1
0,2,-1
0,3,-1
0,4,-1
.........
.........
0,143,-1 nLats increments at nLongs=143
1,0, -1
1,1, -1
..........
..........
1,143,-1... (1 Reply)
Hi,
I've searched and couldn't find anyone else with this problem. Is there anyway (preferably using ksh - but other script languages would do) that I can read in binary float data into a text file. The data (arrays from various stages of radar processing) comes in various formats, but mainly... (3 Replies)
I have a column of numbers in the following format:
1.722e-05
2.018e-05
2.548e-05
2.747e-05
7.897e-05
4.016e-05
4.613e-05
4.613e-05
5.151e-05
5.151e-05
5.151e-05
6.1e-05
6.254e-05
7.04e-05
7.12e-05
7.12e-05 (6 Replies)
Hi
I have a file as below
<field1> <field2> <field3> ... <field_num1> <field_num2>
Trying to sort based on difference of <field_num1> and <field_num2> in desceding order and print all fields.
I tried this and it doesn't sort on the difference field .. Appreciate your help.
cat... (9 Replies)
How to sort the following output based on lowest to highest BE?
The following sort does not work.
$ sort -t. -k1,1n -k2,2n bfd.txt
BE31.116 0s 0s DOWN DAMP
BE31.116 0s 0s DOWN DAMP
BE31.117 0s 0s ... (7 Replies)
I have a string of pre defined ip address list which will always remain constant their order will never change like in below sample:
iplist=8.8.5.19,9.7.5.14,12.9.9.23,8.8.8.14,144.1.113
In the above example i m considering only 5 ips but there could be many more.
Now i have a file which... (15 Replies)
Discussion started by: mohtashims
15 Replies
LEARN ABOUT PHP
strripos
STRRIPOS(3) 1 STRRIPOS(3)strripos - Find the position of the last occurrence of a case-insensitive substring in a stringSYNOPSIS
int strripos (string $haystack, string $needle, [int $offset])
DESCRIPTION
Find the numeric position of the last occurrence of $needle in the $haystack string.
Unlike the strrpos(3), strripos(3) is case-insensitive.
PARAMETERS
o $haystack
- The string to search in.
o $needle
- If $needle is not a string, it is converted to an integer and applied as the ordinal value of a character.
o $offset
- If specified, search will start this number of characters counted from the beginning of the string. If the value is negative,
search will instead start from that many characters from the end of the string, searching backwards.
RETURN VALUES
Returns the position where the needle exists relative to the beginnning of the $haystack string (independent of search direction or off-
set). Also note that string positions start at 0, and not 1.
Returns FALSE if the needle was not found.
Warning
This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on
Booleans for more information. Use the === operator for testing the return value of this function.
EXAMPLES
Example #1
A simple strripos(3) example
<?php
$haystack = 'ababcd';
$needle = 'aB';
$pos = strripos($haystack, $needle);
if ($pos === false) {
echo "Sorry, we did not find ($needle) in ($haystack)";
} else {
echo "Congratulations!
";
echo "We found the last ($needle) in ($haystack) at position ($pos)";
}
?>
The above example will output:
Congratulations!
We found the last (aB) in (ababcd) at position (2)
SEE ALSO strpos(3), stripos(3), strrpos(3), strrchr(3), stristr(3), substr(3).
PHP Documentation Group STRRIPOS(3)