PHP: unset - Manual
unset() destroys the specified variables. The behavior of unset() inside of a function can vary depending on what type of variable you are attempting to destroy. If a globalized variable is unset() inside of a function, only the local variable is destroyed.
$unset - MongoDB Manual
Learn how to delete specific fields in MongoDB documents using the $unset operator.
Unset Definition & Meaning - Merriam-Webster
The meaning of UNSET is not set. How to use unset in a sentence.
UNSET | definition in the Cambridge English Dictionary
UNSET meaning: 1. (of a precious stone such as a diamond) not fixed to a piece of jewellery: 2. not having become…. Learn more.
PHP unset() Function - W3Schools
Definition and Usage. The unset () function unsets a variable. Syntax. unset (variable, ....); Parameter Values. Technical Details. PHP Variable Handling Reference. W3schools Pathfinder. Track your progress - it's free! Log in Sign Up.
unset - CSS: Cascading Style Sheets | MDN - MDN Web Docs
2023年4月16日 · The unset CSS keyword resets a property to its inherited value if the property naturally inherits from its parent, and to its initial value if not.
PHP | unset() Function - GeeksforGeeks
2018年4月9日 · To unset the value of an element, unset keyword is used. The unset CSS keyword resets a property of an element to its inherited value if the property naturally inherits from its parent, or to its initial value if it does not inherit.
PHP: Unsetting References - Manual
When you unset the reference, you just break the binding between variable name and variable content. This does not mean that variable content will be destroyed. For example: <?php. $a = 1; $b =& $a; unset($a); ?>. won't unset $b, just $a.
PHP unset() Function: A Comprehensive Guide - Web Developers …
unset() is a built-in PHP function that destroys the specified variable (s). Syntax. unset ($variable) The unset () function accepts one or more parameters, which can be variables or array elements, and removes them from memory. It does not return any value.
PHP unset() function - w3resource
2022年8月19日 · The unset () function destroys a given variable. Version: (PHP 4 and above) Syntax: unset (var1, var2.... Parameters: *Mixed: Mixed indicates that a parameter may accept …