How can PHP functions like fwrite() be optimized to avoid parsing issues with variable content?

When using functions like fwrite() to write content to files in PHP, it's important to properly escape any variable content to avoid parsing issues. One way to do this is by using the htmlspecialchars() function to convert special characters to HTML entities before writing the content to the file. 

// Example of optimizing fwrite() to avoid parsing issues with variable content
$file = 'example.txt';
$content = "<script>alert('Hello, World!');</script>"; // Example of potentially unsafe content

// Escape special characters in the content
$escaped_content = htmlspecialchars($content, ENT_QUOTES);

// Write the escaped content to the file
$handle = fopen($file, 'w');
fwrite($handle, $escaped_content);
fclose($handle);

Keywords

PHP fwrite() optimization parsing issues variable content

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