What are some best practices for replacing multiple occurrences of a pattern in a string using PHP functions?

When replacing multiple occurrences of a pattern in a string using PHP functions, it is best to use the `preg_replace` function with the appropriate regular expression pattern. This function allows you to specify the pattern to search for and the replacement string. Additionally, using the `preg_replace` function with the `g` modifier ensures that all occurrences of the pattern are replaced in the string. 

$string = "The quick brown fox jumps over the lazy dog.";
$pattern = "/fox/";
$replacement = "cat";

$new_string = preg_replace($pattern, $replacement, $string);

echo $new_string;

Keywords

preg_replace regular expressions str_replace substr_replace string manipulation

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