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  • In php the array index starts from zero (0).
  • But in terms of associative array, it supports index value with string data.So, the user can define the index.

php language Syntax :

array(
key[string1] => value0,
key[string2] => value1,
key[string3] => value2,
...
)
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Advantage of using Associative Arrays

  • We can use the associative array like a list, dictionary, collection, stack, queue, etc.…
  • We can create different types of sorting process using Associative Array.
  • In php we can merge the two associative arrays using php functions.

learn php Sample Code : a simple php program

<!DOCTYPE html>
<html>
    <body>
        <?php
            $var1 = array("samp1"=>"zero","samp2"=>"one","samp3"=>"two");
            echo "samp1 value-" .$var1['samp1'];
            echo "<br>";
            echo "samp2 value-" .$var1['samp2'];
            echo "<br>";
            echo "samp3 value-" .$var1['samp3'];
        ?>
    </body>
</html>
click below button to copy the code. php tutorial - team

php examples Code Explanation :

Code Explanation for Associative arrays In PHP

  1. In this statement we define the associative array for the variable “$var1” by using array function and its value is declared by “key” in which, more than one values are separated by using commas (,) like “$var1=array (“samp1” =>” zero”, “samp2” =>”one”, “samp3” =>” two”) and finally the declaration end with semicolon (;).
  2. Echo statement echo "samp1 value-" .$var1['samp1']; will print the key with its string value. Same thing applies for the other two echo statements.

php tutorials Sample Output :

output for Associative arrays In PHP

  1. Here in this output, for the key “samp 1” with its value “zero” has been printed in the output as “samp1 value-zero”.
  2. Here in this output, for the key “samp 2” with its value “one” has been printed in the output as “samp2 value-one”.
  3. Here in this output, for the key “samp 3” with its value “two” has been printed in the output as “samp3 value-two”.


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