I am new to associative array concept of php
. I had never used associative array
before this. I came through an example, and got the following code:
function isAssoc($arr)
{
return array_keys($arr) !== range(0, count($arr) - 1);
}
echo(var_dump(isAssoc(array("0" => 'a', "1" => 'b', "2" => 'c'))).'<br />'); // false
echo(var_dump(isAssoc(array("1" => 'a', "1" => 'b', "2" => 'c'))).'<br />'); //true
echo(var_dump(isAssoc(array("1" => 'a', "0" => 'b', "2" => 'c'))).'<br />'); // true
echo(var_dump(isAssoc(array("a" => 'a', "b" => 'b', "c" => 'c'))).'<br />'); // true
The above function is used to tell whether the array
is associate array
or not.
I have this doubt why:
array("0" => 'a', "1" => 'b', "2" => 'c')
is not an associative array as it returns false. Whereas,
array("1" => 'a', "0" => 'b', "2" => 'c') //OR
array("1" => 'a', "1" => 'b', "2" => 'c')
is an associative array?