Passing by Reference ¶. You can pass a variable by reference to a function so the function can modify the variable. The syntax is as follows:.

1) Pass by reference anything that should refer to and affect the original copy. 2) Pass not by reference things that will definitely not be altered in the ...

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Passing a variable to a function is done by default as a value pass, ie, you are working with a copy. "But objects are passed by reference!" A common ...

Mar 4, 2007 · Pass By Reference ¶. The second thing references do is to pass variables by reference. This is done by making a local variable in a function and ...

References in PHP are a means to access the same variable content by different names. They are not like C pointers; for instance, you cannot perform pointer ...

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Returning References ¶. Returning by reference is useful when you want to use a function to find to which variable a reference should be bound.

If a pass-by-reference parameter has a type declaration, the type of the variable is only checked on function entry, at the beginning of the call, but not when ...