php tutorial - PHP Associative Arrays - php programming - learn php - php code - php script
- 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,
...
)click below button to copy the code. php tutorial - team
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 :
- 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 (;).
- 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 :
- Here in this output, for the key “samp 1” with its value “zero” has been printed in the output as “samp1 value-zero”.
- Here in this output, for the key “samp 2” with its value “one” has been printed in the output as “samp2 value-one”.
- Here in this output, for the key “samp 3” with its value “two” has been printed in the output as “samp3 value-two”.