(PHP 5, PHP 7, PHP 8)
ReflectionFunction::__construct —Constructs a ReflectionFunction object
Constructs aReflectionFunction object.
functionThe name of the function to reflect or aclosure.
AReflectionException if thefunction parameter does not contain a valid function.
Example #1ReflectionFunction::__construct() example
<?php
/**
* A simple counter
*
* @return int
*/
functioncounter1()
{
static$c=0;
return ++$c;
}
/**
* Another simple counter
*
* @return int
*/
$counter2= function()
{
static$d=0;
return ++$d;
};
functiondumpReflectionFunction($func)
{
// Print out basic information
printf(
"\n\n===> The %s function '%s'\n".
" declared in %s\n".
" lines %d to %d\n",
$func->isInternal() ?'internal':'user-defined',
$func->getName(),
$func->getFileName(),
$func->getStartLine(),
$func->getEndline()
);
// Print documentation comment
printf("---> Documentation:\n %s\n",var_export($func->getDocComment(),1));
// Print static variables if existant
if ($statics=$func->getStaticVariables())
{
printf("---> Static variables: %s\n",var_export($statics,1));
}
}
// Create an instance of the ReflectionFunction class
dumpReflectionFunction(newReflectionFunction('counter1'));
dumpReflectionFunction(newReflectionFunction($counter2));
?>The above example will outputsomething similar to:
===> The user-defined function 'counter1' declared in Z:\reflectcounter.php lines 7 to 11---> Documentation: '/** * A simple counter * * @return int */'---> Static variables: array ( 'c' => 0,)===> The user-defined function '{closure}' declared in Z:\reflectcounter.php lines 18 to 23---> Documentation: '/** * Another simple counter * * @return int */'---> Static variables: array ( 'd' => 0,)