(PHP 5 >= 5.2.0, PHP 7)
ReflectionFunctionAbstract::isDeprecated — Checks if deprecated
public ReflectionFunctionAbstract::isDeprecated ( ) : bool
Checks whether the function is deprecated.
This function has no parameters.
true if it's deprecated, otherwise false
Example #1 ReflectionFunctionAbstract::isDeprecated() example
<?php
$rf = new ReflectionFunction('ereg');
var_dump($rf->isDeprecated());
?> The above example will output:
bool(true)
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https://www.php.net/manual/en/reflectionfunctionabstract.isdeprecated.php