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PHP Quiz PHP CertificatePHP compact() Function
Complete PHP Array Reference
Definition and Usage
The compact() function creates an array from variables and their values.
Syntax
compact(var1,var2...)
| Parameter | Description |
|---|---|
| var1 | Required. Can be a string with the variable name, or an array of variables |
| var2 | Optional. Can be a string with the variable name, or an array of variables. Multiple parameters are allowed. |
Tips and Notes
Note: Any strings that does not match variable names will be skipped.
Example 1
<?php
$firstname = "Peter";
$lastname = "Griffin";
$age = "38";
$result = compact("firstname", "lastname", "age");
print_r($result);
?>
$firstname = "Peter";
$lastname = "Griffin";
$age = "38";
$result = compact("firstname", "lastname", "age");
print_r($result);
?>
The output of the code above will be:
Array
(
[firstname] => Peter
[lastname] => Griffin
[age] => 38
)
(
[firstname] => Peter
[lastname] => Griffin
[age] => 38
)
Example 2
Using a string that does not match a variable, and an array of variable names:
<?php
$firstname = "Peter";
$lastname = "Griffin";
$age = "38";
$name = array("firstname", "lastname");
$result = compact($name, "location", "age");
print_r($result);
?>
$firstname = "Peter";
$lastname = "Griffin";
$age = "38";
$name = array("firstname", "lastname");
$result = compact($name, "location", "age");
print_r($result);
?>
The output of the code above will be:
Array
(
[firstname] => Peter
[lastname] => Griffin
[age] => 38
)
(
[firstname] => Peter
[lastname] => Griffin
[age] => 38
)
Complete PHP Array Reference
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