The preg_replace() function is an in-built function that returns a word or array of words with the replacement of some content after searching the pattern. If the search pattern is not found then it will be returned unchanged.
Approach:
- Declare a variable with a string value.
- Use preg_replace() function to replace the first character of every word.
- Display the replaced value of the string variable.
Example 1:
PHP
<?php // Text to replace $text = "Geeks For Geeks"; // The preg_replace is used here to replace the // color of first character of the word $text = preg_replace('/(\b[a-z])/i', '<span style="color:green;">\1</span>', $text); // Display the text value echo $text?> |
Output:
Example 2:
PHP
<?php // Text to replace $text = "Practice code in GEEKSFORGEEKS"; // The preg_replace is used here to replace the // color of first character of the word $text = preg_replace('/(\b[a-z])/i', '<span style="color:green;">\1</span>', $text); // Display the text value echo $text?> |
Output:
