In_array function usage Analysis in PHP, phpin_array_php tutorial

In_array function usage Analysis in PHP, Phpin_array

This paper analyzes the usage of In_array function in PHP. Share to everyone for your reference. Specific as follows:

PHP is a weakly typed language when using the In_array function as much as possible with the third parameter, the code is as follows:
Copy the Code code as follows: Var_dump (In_array (0,array (' s ', ' SSS '), true)); return False

Var_dump (In_array (0,array (' s ', ' SSS ')); return True

Var_dump (In_array (0,array)); return False
From the above three functions can be seen when, the first: In_array (0,array (' s ', ' SSS '), true), return is the value we want.

Use: copy code code as follows: Var_dump (In_array (0,array (' s ', ' SSS ')); and: copy code code as follows: Var_dump (In_array (0,array ( ));

Return ture is obviously not the value we want, because the main PHP is weak type so before you pay attention to some of the better.

I hope this article is helpful to everyone's PHP programming.

http://www.bkjia.com/PHPjc/912287.html www.bkjia.com true http://www.bkjia.com/PHPjc/912287.html techarticle In_array function Usage Analysis in PHP, phpin_array the In_array function usage of PHP in this paper. Share to everyone for your reference. The following: PHP is a weakly typed language in the use of In_ ...

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