The return value of the php function. The return value of the php function. In fact, the php function can return one or more values. you can use the return keyword to return a variable or an array. Return will stop the program at return and return the return value of the php function. In fact, the php function can return one or more values. you can use the return keyword to return a variable or an array. Return will stop the program at return and return the specified variable.
Let's take an example today:
| The code is as follows: |
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';
Function she ($ a, $ B, $ c)
{
Return array ($ c, $ B, $ );
}
List ($ x, $ y, $ z) = she (2, 3, 4 );
Echo '$ x ='. $ x. '$ y ='. $ y. '$ z ='. $ z;
?>
The execution result is as follows:
Function add ($ shu)
{
Return $ shu + 1;
}
Echo add (2 ).'
';
Function she ($ a, $ B, $ c)
{
Return array ($ c, $ B, $ );
}
List ($ x, $ y, $ z) = she (2, 3, 4 );
Echo '$ x ='. $ x .'
$ Y = '. $ y .'
$ Z = '. $ z;
?>
Php letter |
How to return multiple return values (the function cannot return multiple values, but you can return an array to obtain similar results.
)
| The code is as follows: |
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Function results ($ string)
{
$ Result = array ();
$ Result [] = $ string; // original string
$ Result [] = strtoupper ($ string); // replace all with uppercase letters
$ Result [] = strtolower ($ string); // replace all with lowercase letters
$ Result [] = ucwords ($ string); // replace the first letter of a word with an uppercase letter.
Return $ result;
}
$ Multi_result = results ('The quick brown fox jump over The lazy dog ');
Print_r ($ multi_result );
?>
Output result:
Array
(
[0] => The quick brown fox jump over the lazy dog
[1] => THE QUICK BROWN FOX JUMP OVER THE LAZY DOG
[2] => the quick brown fox jump over the lazy dog
[3] => The Quick Brown Fox Jump Over The Lazy Dog
) |
Reference
This function returns three values. one is the function return and the other two are referenced.
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Test (& $ a, & $ B ){
$ A = 1000;
$ B = 12000;
Return $ a + $ B;
}
$ A = 10;
$ B = 12;
$ C = test ($ a, $ B); // note that no & is found here.
// Display the modified value
Echo $;
Echo $ B;
Echo $ c; // This is the return value of the function; |
Bytes. In fact, the php function can return one or more values. you can use the return keyword to return a variable or an array. Return will stop the program at return and return...
