In what scenarios would using mb_strpos() and mb_substr() be more beneficial for string manipulation in PHP compared to other functions?

When working with multibyte strings in PHP, it is important to use functions that support multibyte characters properly. mb_strpos() and mb_substr() are specifically designed to handle multibyte characters, making them more beneficial for string manipulation in scenarios where multibyte characters are present. These functions ensure accurate position and substring extraction in multibyte strings, avoiding issues that may arise when using standard string functions that do not handle multibyte characters correctly. 

// Using mb_strpos() to find the position of a multibyte substring in a multibyte string
$haystack = 'こんにちは、世界！';
$needle = '世界';
$position = mb_strpos($haystack, $needle);

echo $position; // Output: 9

// Using mb_substr() to extract a multibyte substring from a multibyte string
$substring = mb_substr($haystack, $position, mb_strlen($needle));

echo $substring; // Output: 世界

Keywords

mb_strpos mb_substr string manipulation multibyte PHP

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