What are some best practices for using strlen() to calculate text width in PHP?

When using strlen() to calculate the width of text in PHP, it's important to remember that strlen() calculates the number of bytes, not the number of characters. This can lead to incorrect text width calculations, especially when dealing with multi-byte characters like emojis or accented characters. To accurately calculate the text width, it's recommended to use mb_strlen() instead, which takes into account multi-byte characters. 

$text = "Hello, 😊";
$textWidth = mb_strlen($text, 'UTF-8');
echo "Text width: $textWidth";

Keywords

strlen text width PHP calculation best practices

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