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PHP

How can use Array Operators in PHP with Example?

February 1, 2020 comments off

Php union:-
($a+$b) = Work as union means if same value then replace left variable to right variable(for keys that exit both array)
ex:-

<?php
$a = array ("value"=> 100, "value1"=> 200, "value2"=> 300, "value3"=> 400);
$b = array ("value"=> "name", "value1"=>"name1", "value2"=> "name3", "value3"=>"name4", "value4"=> "name5");
$sample = $a+$b;
print_r($sample);
//second example
echo "<br>";
$a = array ("value"=> 100, "value1"=> 200, "value2"=> 300, "value3"=> 400);
$b = array ("value"=> "name", "value1"=>"name1", "value2"=> "name3", "value3"=>"name4", "value4"=> "name5");
$sample = $b+$a;
print_r($sample);
?>
view raw union-operators.php hosted with ❤ by GitHub

Php Equality:-
Key value same but order different then print true.Key/Value pair different but order same then print false.
ex:-

<?php
//Php Equality
//True $c and $c have same key/value
echo "<br>";
$c = array ("value"=> 100, "value1"=> 200, "value2"=> 300, "value3"=> 400);
$d = array ("value"=> "name", "value1"=>"name1", "value2"=> "name3", "value3"=>"name4", "value4"=> "name5");
if ($c == $d)
{
echo "this is True operators";// Key value same but order different then print true
}
else
echo "this is False operators";//Key/Value pair different but order same then print false
//second example
echo "<br>";
$c = array ("value"=> 100, "value1"=> 200, "value2"=> 300, "value3"=> 400);
$d = array ("value1"=> 100, "value2"=> 200, "value3"=> 300, "value"=> 400);
if ($c == $d)
{
echo "this is True operators";// Both array Key/Value Pair True
}
else
echo "this is False else operators";//Key/value pair False
?>
view raw equality-array-operators.php hosted with ❤ by GitHub

Php Identity:-
In this Operators key/pair value same but order different then display false means order does not matter & when order same
ex:-

<?php
//Php Identity
echo "<br>";
$c = array ("value"=> 100, "value1"=> 200, "value2"=> 300, "value3"=> 400);
$d = array ("value1"=> 100, "value2"=> 200, "value3"=> 300, "value"=> 400);
if ($c === $d)
{
echo "this is True operators";// Both array Key/Value Pair True
}
else
echo "this is False operators";//Key/value pair False
//second example
echo "<br>";
$c = array ("value"=> 100, "value1"=> 200, "value2"=> 300, "value3"=> 400);
$d = array ("value"=> 100, "value1"=> 200, "value2"=> 300, "value3"=> 400);
if ($c === $d)
{
echo "this is True operators";// Both array Key/Value Pair True
}
else
echo "this is False operators";//Key/value pair False
//third exmple
echo "<br>";
$c = array ("value"=> 100, "value1"=> 200, "value2"=> 300, "value3"=> 400);
$d = array ("value"=> 200, "value1"=> 100, "value2"=> 400, "value3"=> 300);
if ($c === $d)
{
echo "this is True operators";// Both array Key/Value Pair True
}
else
echo "this is False operators";//Key/value pair False
?>
view raw identity-operators.php hosted with ❤ by GitHub

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