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Top Forums Shell Programming and Scripting Replace character in certain position in a string Post 302516880 by snipaa on Monday 25th of April 2011 12:26:35 PM
Old 04-25-2011
Replace character in certain position in a string

Hello everyone this is my first post of many to come Smilie

I am writing a script and in this script at one point i need to replace a character in a particular position in a string for example:

in the string "mystery" i would need to replace the 3rd position to an "r" so the string becomes "myrtery"

i cant use cut because the loop needs to update the string on several occations on different positions so for example next time over i need to replace the 4th position to "y" the string becomes "mirytery"

any ideas as to how I can do this?? any help is greatly appreciated
 

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MB_STRPOS(3)								 1							      MB_STRPOS(3)

mb_strpos - Find position of first occurrence of string in a string

SYNOPSIS
int mb_strpos (string $haystack, string $needle, [int $offset], [string $encoding = mb_internal_encoding()]) DESCRIPTION
Finds position of the first occurrence of a string in a string. Performs a multi-byte safe strpos(3) operation based on number of characters. The first character's position is 0, the second character position is 1, and so on. PARAMETERS
o $haystack - The string being checked. o $needle - The string to find in $haystack. In contrast with strpos(3), numeric values are not applied as the ordinal value of a character. o $offset - The search offset. If it is not specified, 0 is used. o $encoding -The $encoding parameter is the character encoding. If it is omitted, the internal character encoding value will be used. RETURN VALUES
Returns the numeric position of the first occurrence of $needle in the $haystack string. If $needle is not found, it returns FALSE. SEE ALSO
mb_internal_encoding(3), strpos(3). PHP Documentation Group MB_STRPOS(3)
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