What potential issues may arise when using str_replace() in PHP?

One potential issue when using str_replace() in PHP is that it is case-sensitive by default, meaning it will only replace exact matches. To solve this, you can use the str_ireplace() function instead, which is case-insensitive. 

// Case-insensitive replacement using str_ireplace()
$string = "Hello World";
$new_string = str_ireplace("hello", "hi", $string);
echo $new_string; // Output: "hi World"

Keywords

str_replace PHP string manipulation character encoding escaping characters

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