The purpose of this article is to extract numbers from a string using PHP.
Approach:
We can use the preg_replace() function for the extraction of numbers from the string.
- /[^0-9]/ pattern is used for finding number as integer in the string (Refer to Example 1)
- /[^0-9\.]/ pattern is used for finding number as double in the string (Refer to Example 2)
Example 1:
PHP
<?php $string = '$ 90,000,000.0098'; echo preg_replace("/[^0-9]/", '', $string); echo "\n<br/>"; $string2 = '$ 90,000,000.0098'; echo preg_replace("/[^0-9\.]/", '', $string2); ?> |
Output
900000000098 90000000.0098
Example 2: The complete code for extracting number from the string is as follows
PHP
<?php $string = '$ 90,000,000.0098'; echo preg_replace("/[^0-9]/", '', $string); echo "\n<br/>"; $string2 = '$ 90,000,000.0098'; echo preg_replace("/[^0-9\.]/", '', $string2); echo "\n<br/>"; $string3 = 'Jack has 10 red and 14 blue balls'; echo preg_replace("/[^0-9]/", '', $string3); echo "\n"; ?> |
Output
900000000098 90000000.0098 1014
