27 lines
865 B
Plaintext
27 lines
865 B
Plaintext
:sig
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String substr(String s, s64 start_pos)
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String substr(String s, s64 start_pos, s64 length)
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:params
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s : source string
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start_pos : zero-based start position; negative values count from the end of the string
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length : optional substring length; negative values trim bytes from the end of the result range
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return value : extracted substring, or an empty string if the requested range is outside the source string
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:see
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>string
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:content
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Extracts part of a string using PHP-style start and length semantics.
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Use the two-argument form to return everything from `start_pos` to the end of the string.
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If `start_pos` is negative, counting starts from the end of the string.
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If `length` is negative, the returned range stops that many bytes before the end of the string.
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Related:
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- PHP: `substr()`
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- JavaScript / Node.js: `String.prototype.slice()` or `substring()`
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