Limit replacement times

Question

is there a function in PHP that I can use to replace a specific character with another one, but I should be able to limit the number of replacements done? I am currently trying to get preg_replace() to work, as it has that ability, but there seems to be something wrong. Here is what I am using:

$args[0] = preg_replace("/\$/", $args[$x], $args[0], 1);

$args[0] contains letters and special "$" characters, which should be replaced.

Any help?

can you post the values of `$args[$x]` and `$args[0]` as example ? — Naveed, Jun 21 '11 at 12:08

score 5 · Accepted Answer · edited May 23 '17 at 12:23

5

Have you tried "/\\$/" (2 backslashes)?

(See How to escape $ in PHP using preg_replace? for more info)

edited May 23 '17 at 12:23

Community

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answered Jun 21 '11 at 12:05

kennytm

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score -1 · Answer 2 · edited Apr 10 '12 at 02:38

-1

This is the syntax of replacement fn:

preg_replace($patterns, $replacements, $string);

so you have to put first the patterns after that the replacements (the char you want to replace with it) at the end of your string.

edited Apr 10 '12 at 02:38

answered Jun 21 '11 at 12:08

ghufran

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And the fourth argument (which is optional) specifies a limit to the number of times the replacement is performed. Thanks for your willingness to post, but it appears that the function's usage is already understood. – Wiseguy Jun 21 '11 at 12:11

Limit replacement times

2 Answers2