PHP String Exercises: Remove part of a string

Last update on June 02 2025 13:01:33 (UTC/GMT +8 hours)

20. Remove Part of a String

Write a PHP script to remove part of a string.

Original String : 'The quick brown fox jumps over the lazy dog'
Remove 'fox' from the above string.

Visual Presentation:

PHP String Exercises: Remove part of a string

Sample Solution:

PHP Code:

<?php
$my_str = 'The quick brown fox jumps over the lazy dog';
// Define the original string.

echo str_replace("fox", " ", $my_str)."\n";
// Replace all occurrences of "fox" with a space in the original string and output the result.
?>

Output:

The quick brown   jumps over the lazy dog

Explanation:

The above PHP code snippet takes the string 'The quick brown fox jumps over the lazy dog' and replaces all occurrences of the substring 'fox' with a space ' ' using the str_replace() function. The "str_replace()" function searches for a specific substring in a string and replaces all occurrences with another substring. Here, it replaces all occurrences of 'fox' with a space, resulting in the string 'The quick brown jumps over the lazy dog'. Finally, it echoes out the modified string.

Flowchart :

For more Practice: Solve these Related Problems:

Write a PHP script to search for a specific substring in a sentence and remove it, then output the modified sentence.
Write a PHP function to delete a target word from a given string and return the new string.
Write a PHP program to remove all instances of a particular substring from a sentence, ensuring correct spacing afterward.
Write a PHP script to use str_replace() selectively to remove only the first occurrence of a given word from a string.

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