Php in_array function

 

In_array
(PHP 4 and PHP 5)

In_array-check whether an array of values exists

Description
Boolean in_array (mixed $ needle, array $ heexke [, Boolean $ strict])
Search for the needle of heatake.

Parameters

Needle
The value to be searched.

Note: If the needle is a string, such comparison is case sensitive.


Heatake
Array.

Strict
If the strict third parameter is set to TRUE, the in_array () function will also check all kinds of needles in the haystack.


Return value
Returns TRUE, except for false, if found in the needle array.

Modify

Version description
4.2.0 needles may now be an array.


Instance

Example 1
<? Php
$ People = array ("Peter", "Joe", "Glenn", "Cleveland ");

If (in_array ("Glenn", $ people ))
  {
Echo "Match found ";
  }
Else
  {
Echo "Match not found ";
  }
?>
Output:
Match found
Example 2
<? Php
$ People = array ("Peter", "Joe", "Glenn", "Cleveland", 23 );

If (in_array ("23", $ people, TRUE ))
  {
Echo "Match found <br/> ";
  }
Else
  {
Echo "Match not found <br/> ";
} If (in_array ("Glenn", $ people, TRUE ))
  {
Echo "Match found <br/> ";
  }
Else
  {
Echo "Match not found <br/> ";
} If (in_array (23, $ people, TRUE ))
  {
Echo "Match found <br/> ";
  }
Else
  {
Echo "Match not found <br/> ";
  }
?>
Output:
Match not found
Match found
Match found