What are some recommended PHP functions for searching and manipulating text data within a file?

When working with text data within a file in PHP, it's important to use functions that can efficiently search for and manipulate the content. Some recommended PHP functions for this purpose include file_get_contents() to read the file contents into a string, strpos() to search for a specific substring within the text, and str_replace() to replace occurrences of a substring with another value. 

// Read the contents of a file into a string
$file_contents = file_get_contents('example.txt');

// Search for a specific substring within the text
$position = strpos($file_contents, 'search_term');

// Replace occurrences of a substring with another value
$new_contents = str_replace('old_value', 'new_value', $file_contents);

Keywords

PHP functions text data searching manipulating file.

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