How php converts an array into a set of variables

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In php, you can use list () to convert the array into a set of variables with the syntax "list (variable 1, variable 2, variable 3.) = $array;". The list () function can assign values in an array to a set of variables in a single operation, and the number of array elements needs to be greater than or equal to the number of parameters in list ().

Operating environment of this tutorial: windows7 system, PHP5.5 version, DELL G3 computer

In php, you can use list () to convert an array into a set of variables.

List () can assign values in an array to a set of variables separately. Like array (), it is not a real function, but a language structure. List () can assign values to a set of variables (multiple) in a single operation.

Syntax format:

List ($var1 [, $val2,...]) = $array

Parameter description:

$val1, $val2... Is a set of variables to be assigned, separated by commas between multiple variables.

$array is an array of assignments.

Note: list () can only be used for indexed arrays, and the index starts at 0. In PHP5, list () is assigned from the rightmost parameter, while in PHP7, list () is assigned from the leftmost parameter.

Example:

As you can see, in the above example, the array is turned into a set of variables ($a, $b, $c).

It should be noted that the number of array elements can be greater than or equal to the number of parameters in list (), but not less, otherwise an error will be reported:

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