I've two arrays suppose:
$a = array(1,2,3,4);
$b = array(3,4,5,6);
Now I've to do something while all $a element is exactly equals to array $b
3 Answers
Comments
have you tried array_diff()?
Comments
There are a few things you could do here in my mind.
A VERY simple and basic way would be to loop through and have some logic in there to check if $a[$val] == $b[$val] and if it is do something, otherwise not.
Like the good people above said, there is a function in PHP called array_diff() which computes the difference in arrays. The below example is taken from the PHP.net site.
<?php
$array1 = array("a" => "green", "red", "blue", "red");
$array2 = array("b" => "green", "yellow", "red");
$result = array_diff($array1, $array2);
print_r($result);
?>
Multiple occurrences in $array1 are all treated the same way. This will output :
Array
(
[1] => blue
)
So it depends on exactly what you want to do. If you wish to make your statement more clear then please do so and I will try to re-answer accordingly.
Thanks
Comments
$aagainst single elements in$b? Do you want to compare the whole arrays (then you would not need a while loop)? Your current statement sounds like you wanted to compare each element in$aagainst$b. That does not seem to be sense, an element is never equal to a whole array.