How php reverses strings by word

This article mainly introduces how php reverses the string by words, which has a certain reference value, and interested friends can refer to it. I hope you will gain a lot after reading this article.

Inversion method: 1, use the "explode (', $str)" statement to convert the string into an array; 2, use the "array_reverse ($arr)" statement to reverse the array and return the array in the opposite order of elements; 3, use the "implode (', $arr)" statement to convert the inverted array into a string.

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

Php reverses the string by word

Implementation method: followed by an array

First convert the string into array elements according to words

Then use array_reverse () to reverse the array

Then convert the inverted array to a string

Implementation code:

Output result:

Description:

The explode () function splits a string based on a string delimiter, that is, it splits a string into several substrings based on the delimiter, and then combines these substrings into an array and returns.

The array_reverse () function returns the array in the reverse order of elements.

The implode () function can convert an one-dimensional array to a string.

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