PHP uses recursive algorithm to infinitely traverse an array

This article mainly introduces PHP's use of recursive algorithm to infinitely traverse arrays, and analyzes PHP's general traversal skills for one-dimensional arrays, two-dimensional arrays and multi-dimensional irregular arrays in the form of examples. Friends who need it can refer to it

The details are as follows:

"; } //end if } //end foreach } //end fun //fun($a1); //fun($a2); fun($a3); ?>

Output:

5 55 4 444 2 7 6 8 w d 3 2 a s

The above is the content of this article All content, I hope it will be helpful to everyone's study.

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