Tools, FAQ, Tutorials:
Replacing a Substring in PHP
How To Replace a Substring in a Given String?
✍: FYIcenter.com
If you know the position of a substring in a given string, you can replace that substring by another string by using the substr_replace() function. Here is a PHP script on how to use substr_replace():
<?php $string = "Warning: System will shutdown in NN minutes!"; $pos = strpos($string, "NN"); print(substr_replace($string, "15", $pos, 2)."\n"); sleep(10*60); print(substr_replace($string, "5", $pos, 2)."\n"); ?>
This script will print:
Warning: System will shutdown in 15 minutes! (10 minutes later) Warning: System will shutdown in 5 minutes!
Like substr(), substr_replace() can take negative starting position counted from the end of the string.
⇒ Reformatting a Paragraph of Text in PHP
2016-10-13, 2125🔥, 0💬
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