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PHP - and / or keywords
Dear All,
I would like to get clear in mind about conditional operators in php. Please clarify me what is the difference between '&&' and 'AND' in php?
Thanks in Advance
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== Operator: This operator is used to check the given values are equal or not. If yes, it returns true, otherwise it returns false. Syntax: operand1 == operand2. === Operator: This operator is used to check the given values and its data type are equal or not. If yes, then it returns true, otherwise it returns false.
PHP $ and $$ Variables. The $var (single dollar) is a normal variable with the name var that stores any value like string, integer, float, etc. The $$var (double dollar) is a reference variable that stores the value of the $variable inside it.
$message is used to store variable data. $$message can be used to store variable of a variable. Data stored in $message is fixed while data stored in $$message can be changed dynamically.
The spaceship operator <=> is the latest comparison operator added in PHP 7. It is a non-associative binary operator with the same precedence as equality operators ( == , !=
They do the same thing, but && has higher precedence than AND.
http://php.net/manual/en/language.operators.precedence.php
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