Web Reference: By default, function arguments are passed by value (so that if the value of the argument within the function is changed, it does not get changed outside of the function). To allow a function to modify its arguments, they must be passed by reference. Aug 4, 2008 · It's by value according to the PHP Documentation. By default, function arguments are passed by value (so that if the value of the argument within the function is changed, it does not get changed outside of the function). To allow a function to modify its arguments, they must be passed by reference. By default, PHP uses pass by value, meaning the function receives a copy of the variable. Changes inside the function don't affect the original variable. However, pass by reference allows the function to modify the original variable by using the ampersand (&) symbol.
YouTube Excerpt: In this short video, we break down the key differences between
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Php Tutorial Pass By Value Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
Estimated Worth: $82M - $118M
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Last Updated: April 7, 2026
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