How to delete elements in an object in php

php method to delete elements in an object: first create a PHP sample file; then delete it through the "var_dump($user);unset($user->name);var_dump($user);" method Just a property of the object.

The operating environment of this article: Windows 7 system, PHP version 7.1, DELL G3 computer

How to delete elements in an object with php? How to delete an attribute of an object in php?

unset

<?php
define(&#39;CLI_SCRIPT&#39;, true);
$user = new stdClass();
$user->id = 1;
$user->name = &#39;tony&#39;;
$user->age = 23;
var_dump($user);
unset($user->name);
var_dump($user);

Related introduction:

unset - Release the given variable

Description

unset(mixed $var, mixed $... = ?): void

unset() Destroy the specified variable variable.

The behavior of unset() in a function will vary depending on the type of variable you want to destroy.

If you unset() a global variable in a function, only the local variable will be destroyed, and the variables in the calling environment will maintain the same value before calling unset().

<?php
function destroy_foo() {
    global $foo;
    unset($foo);
}
$foo = &#39;bar&#39;;
destroy_foo();
echo $foo;
?>

The above routine will output:

bar

Recommended learning: "PHP Video Tutorial"

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