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What Does trim() Do in PHP? – Complete Guide & Examples What Does trim() Do in PHP? The trim() function is one of the most frequently used string utilities in PHP. It removes unwanted characters—by default whitespace—from the beginning and end of a string, making data clean and ready for processing, storage, or display.
In this article we’ll explore the syntax, optional parameters, practical examples, and best‑practice tips for using trim() efficiently. Basic Syntax The basic signature of trim() looks like this: string trim ( string $string [, string $character_mask = ” \t\n\r\0\x0B” ] ) $string – The input string.
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