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Detailed explanation of usage examples returned by PHP reference

墨辰丷
Release: 2023-03-29 11:44:02
Original
1541 people have browsed it

This article mainly introduces the usage of PHP reference return, and analyzes the reference usage skills for function parameters and functions in the form of examples. It has certain reference value. Friends in need can refer to

Example 1 :

<?php
$a = 1;
function b(&$c)
{
  $c++;
  return $c;
}
$d=b($a);
$d++;
echo($a);
?>
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Output: 2

Example 2:

<?php
$a = 1;
function &b(&$c)
{
  $c++;
  return $c;
}
$d=&b($a);
$d++;
echo($a);
?>
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Output: 3

Summary: The above is the entire content of this article, I hope it can be useful Everyone’s learning helps.

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