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Reversal method: 1, use strrev () function, syntax is "strrev (" abcdefg ")"; 2, use for statement and substr (), syntax "for ($I = string length-1)) {$r.=substr (" abcdefg ", $iForce 1);}".

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Php reverses the string "abcdefg"

Method 1: use the string reversal function strrev ()

PHP provides a number of built-in functions for dealing with strings, such as using the strrev () function if you want to invert a string.

The strrev () function reverses the string and returns the inverted string.

Example: reverse the string "abcdefg"

Method 2: using for statement and substr () stitching

Traversing strings in reverse order using a for statement

Use the substr () function to intercept a character from back to front and splice it into a new string

Example: reverse the string "abcdefg"

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