Câu hỏi phỏng vấn PHP
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Why do we use extract() ?

Câu trả lời

Here is an answer to the PHP interview question "Why do we use extract()?"

The extract() function in PHP is used to import variables from an array into the current symbol table (the global scope). It allows you to easily convert an associative array into individual variables that can be accessed directly in your code.

Here are some key reasons why you might use extract():

Simplifying Variable Access

  • When working with an associative array that contains key-value pairs representing variables, extract() allows you to access those variables directly without having to use array notation.
  • For example, instead of doing $array['name'], you can simply use $name after calling extract($array).

Reducing Verbosity

  • Using extract() can make your code more concise and readable by eliminating the need to constantly reference array elements.
  • This is especially useful when working with configuration arrays or other data structures that contain many variables.

Compatibility...

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