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This article mainly introduces what are the string functions in PHP, which can be used for reference by interested friends. I hope you can learn a lot after reading this article.

String function

Strlen: get string length, byte length

Substr: intercept strings and get strings (intercepted by bytes)

Strchr: similar to substr, intercepting from the specified location to the end

Strrchr (get file suffix): just like strchr, only look for characters from the right

Strtolower: all characters are lowercase (for English letters)

Strtoupper: all characters are capitalized

Strrev: string reversal (English storage is only one byte), inverted by byte

Strpos: find the position of the corresponding character in the string (numeric subscript), starting from the far left

Strrpos: just like strpos, except to start on the right side of the string

Trim: remove the characters on both sides of the function. Default is a space.

Php what to use php is a nested acronym, is an English hypertext preprocessing language, its syntax mixed C, Java, Perl and php self-innovative syntax, mainly used to do website development, many small websites are developed in php, because php is open source, which makes php enduring.

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