PHP Check duplicated value in array Example

Today, We want to share with you PHP Check duplicated value in array.In this post we will show you php array find duplicate keys, hear for php check if array has duplicate values we will give you demo and example for implement.In this post, we will learn about avoid duplicate values in foreach php with an example.

PHP Check duplicated value in array

There are the Following The simple About PHP Check duplicated value in array Full Information With Example and source code.

As I will cover this Post with live Working example to develop php find duplicates in an array, so the php remove duplicates from string for this example is following below.

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Example 1 : PHP array_unique() Function

PHP Remove duplicate values from an array:

<?php
$a=array("a"=>"jaydeep","b"=>"gondaliya","c"=>"jaydeep");
print_r(array_unique($a));
?>

output
Array ( [a] => jaydeep [b] => gondaliya )

Example 2: PHP Remove duplicate values

How to remove duplicate values from an array in PHP

array_unique() and types

<?php
$input = array(4, "4", "3", 4, 3, "3");
$result = array_unique($input);
var_dump($result);
?>

output

array(2) {
  [0] => int(4)
  [2] => string(1) "3"
}

Example 3 : Check If PHP Array Contains Duplicates

Custom Helper for Check If PHP Array Contains Duplicates

function arrayContainsDuplicate($array)  
{  
      return count($array) != count(array_unique($array));    
}  

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