Example
Search for the value "Glenn" in an array and output some text:
<?php
$people = array("Peter", "Joe", "Glenn", "Cleveland");
if (in_array("Glenn", $people))
{
echo "Match found";
}
else
{
echo "Match not found";
}
?>
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Definition and Usage
The in_array() function searches an array for a specific value.
Note: If the search parameter is a string and the type parameter is set to TRUE, the search is case-sensitive.
Syntax
in_array(search,array,type)
| Parameter | Description |
|---|---|
| search | Required. Specifies the what to search for |
| array | Required. Specifies the array to search |
| type | Optional. If this parameter is set to TRUE, the in_array() function searches for the search-string and specific type in the array. |
Technical Details
| Return Value: | Returns TRUE if the value is found in the array, or FALSE otherwise |
|---|---|
| PHP Version: | 4+ |
| Changelog: | As of PHP 4.2, the search parameter may now be an array |
More Examples
Example 1
Using all parameters:
<?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>";
}
?>
Run example »
< PHP Array Reference