How to strip all symbols and numbers from a string of alphanumeric text. This php code will help you delete, remove, strip and erase any non-alphanumeric characters, and then return the data without the unwanted characters.
Need help removing un-wanted characters from your php text form strings. Here’s how to strip a string of all symbols and characters other than alphanumeric letters and numbers from your file or database. This code will delete any non-alphanumeric characters specified between the brackets, and then output/return the clean version.
<?php $string = "Here! is some text, and numbers 12345, and symbols !£$%^&";
$new_string = preg_replace("/[^a-zA-Z0-9\s]/", "", $string);
echo $new_string ?>
The code should return this:
Here is some text and numbers 12345 and symbols
One more thing. If you don’t like to keep the blank white space in your text just reformat the preg_replace by removing the “\s” whitespace character types. This is good for use with user names and passwords. The code would now look something like this: