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 …

The unset () function unsets a variable. unset (variable, ....); Required. Specifies the variable to unset. ... Optional. Another variable to unset. Well organized and easy to understand Web …

All you need to know at this moment is that it destroys the reference (variable name) to a value, so the value becomes impossible to reach with the given variable name. It removes its name …

unset () 函数用于销毁给定的变量。 PHP 版本要求: PHP 4, PHP 5, PHP 7. void unset ( mixed $var [, mixed $... ] ) 参数说明： $var: 要销毁的变量。 没有返回值。 如果在函数中 unset () 一 …

unset() does just what its name says - unset a variable. It does not force immediate memory freeing. PHP's garbage collector will do it when it see fits - by intention as soon, as those CPU …

2018年4月9日 · The unset() function is an inbuilt function in PHP which is used to unset a specified variable. The behavior of this function depends on different things. If the function is …

2024年7月7日 · unset() is a built-in PHP function that destroys the specified variable (s). Syntax. The unset () function accepts one or more parameters, which can be variables or array …