<=> in php

php != operator

$a == $b	Equal	TRUE if $a is equal to $b after type juggling.
$a === $b	Identical	TRUE if $a is equal to $b, and they are of the same type.
$a != $b	Not equal	TRUE if $a is not equal to $b after type juggling.
$a <> $b	Not equal	TRUE if $a is not equal to $b after type juggling.
$a !== $b	Not identical	TRUE if $a is not equal to $b, or they are not of the same type.
$a < $b	Less than	TRUE if $a is strictly less than $b.
$a > $b	Greater than	TRUE if $a is strictly greater than $b.
$a <= $b	Less than or equal to	TRUE if $a is less than or equal to $b.
$a >= $b	Greater than or equal to	TRUE if $a is greater than or equal to $b.
$a <=> $b	Spaceship	An integer less than, equal to, or greater than zero when $a is less than, equal to, or greater than $b, respectively. Available as of PHP 7.

Posted by: Guest on October-17-2020

//The -> operator, also known as the object operator is used to access the properties and methods for a specific object. // Besides, in simple words, the object operator -> is responsible for accessing an object method. // for example: you a class 'Point' with a 'calculatePoint' method $obj = new Point(); // setting a property of the Point class $obj->x = 'value'; $obj->y = 'value'; // Calling a any method from our $obj $obj->calculatePoint(); // Same implementation in Python pyoObj = Point() pyObj.x = 'value' pyObj.y = 'value' pyObj.calculatePoint() // you should have something like that in most languages, // I mean the '.propery()' instead of '->property()'

// Create a new instance of MyObject into $obj $obj = new MyObject(); // Set a property in the $obj object called thisProperty $obj->thisProperty = 'Fred'; // Call a method of the $obj object named getProperty $obj->getProperty();

// Example usage for: Ternary Operator $action = $_POST['action'] ?: 'default'; // The above is identical to this if/else statement if (empty($_POST['action'])) { $action = 'default'; } else { $action = $_POST['action']; }

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