Question

Explain Indexed array and Associate array in PHP.

Answer 1

• Indexed Arrays:
  Arrays with a numeric index for the available values in array variable which contains key-value pair as user/developer can take the values using keys.
  Example:
  

  <?php
  $teacher_name=array(“Iniyan”, “Kavin”, “Nilani”);
  echo “The students name are “ . $teacher_name[0]. “, “ . $$teacher_name[l]. “ and” . $teacher_name[2].
  ?>

• Associative Arrays:

1. Associative arrays are a key-value pair data structure.
2. nstead of having storing data in a, linear array, with associative arrays you can store your data.
   Example:
   

   <?php
   $Marks=array(“Student1”=>“35”,“Student2”==>“17”,“Student3”=>“43”);
   echo “Student1 mark is” . $Marks[‘Student1’]. “ is eligible for qualification”;
   echo “Student2 mark is” . $Marks[‘Student2’]. “ is not eligible for qualification”;
   ?>