What are the best practices for using preg_replace to remove specific elements from a string in PHP?

When using preg_replace to remove specific elements from a string in PHP, it is important to use the correct regular expression pattern to target the elements you want to remove. Additionally, you should make sure to use the correct flags in the preg_replace function to ensure that all instances of the element are removed from the string. 

// Example code to remove all instances of the word "example" from a string
$string = "This is an example sentence with the word example repeated multiple times.";
$pattern = "/\bexample\b/";
$replacement = "";
$cleaned_string = preg_replace($pattern, $replacement, $string);
echo $cleaned_string;

Keywords

preg_replace string manipulation regular expressions PHP functions data sanitization

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