PHP | Compare Arrays (Indexed Arrays, Associative Arrays, Multidimensional arrays)

 In Arrays lecture, I described about types of Array.

Types of Array in PHP

1. Indexed arrays - Arrays with numeric index
2. Associative arrays - Arrays with named keys
3. Multidimensional arrays - Arrays containing one or more arrays

Here you will come to know that how to compare PHP arrays and how to fetch same value. Sometimes you have to get user detail and compare their attributes. 

Just like

1. Reviews
2. Top Contributors 
3. Levels
4. Addresses
5. Cast
6. Religion
7. Country
8. and more

And this question makes you confuse that how to compare and how to fetch same values with simple PHP functions.
The most important thing you need to understand

array_intersect

Concept. Array_Intersect is used to fetch same values between two arrays.
Here you will come to know, How to check arrays values for duplication?

Compare Arrays Code:

(Indexed Arrays, Associative Arrays, Multidimensional arrays)

---

 <?php  
      $array1 = array('Samee', 'Ullah', 'Feroz');  
      $array2 = array('SEO', 'SMO', 'PPC', 'Samee');  
      $campare = array_intersect($array1, $array2);  
      print_r($campare);  
      echo "<br />";  
      // => Output would be <=  
      // Array ( [0] => Samee )   
      $array1 = array('author' => 'Samee', 'Ullah', 'Feroz');  
      $array2 = array('SEO', 'SMO', 'PPC', 'worker' => 'Samee');  
      $campare = array_intersect($array1, $array2);  
      print_r($campare);  
      echo "<br />";  
      // => Output would be <=  
      // Array ( [author] => Samee )  
      $array1 = array('Samee', 'Ullah', array('Mohammad', 'Feroz', 'Din'));  
      $values = array_values($array1);  
      $array2 = array('SEO', 'SMO', 'PPC', 'Samee', 'Feroz');  
      foreach($values as $array)  
      {  
           $multiarray = array_intersect($array, $array2);  
      }  
      print_r($multiarray);  
      // => Output would be <=  
      // Array ( [1] => Feroz )  
 ?>  

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