How to convert array key name to variable name in php

php method to convert array key names into variable names: 1. Use foreach loop, syntax "foreach($arr as $key=>$value){$$key=$value;}"; 2. Use the extract() function with the syntax "extract($arr);".

The operating environment of this article: Windows7 system, PHP7.1 version, Dell G3 computer

php The key name is the variable name, and the key value is the variable name

Method 1: Use a foreach loop to achieve

<?php
$arr=array(&#39;a&#39;=>1,&#39;b&#39;=>2,&#39;c&#39;=>3,&#39;d&#39;=>5,&#39;e&#39;=>6); 

foreach($arr as $key=>$value){ 
 $$key=$value; 
}   
echo $a."<br>"; 
echo $b;
?>

output Result:

Method 2: Using the extract() function

extract() function from the array Import variables into the current symbol table. This function uses the array key name as the variable name and the array key value as the variable value. For each element in the array, a corresponding variable will be created in the current symbol table. This function returns the number of variables successfully set.

<?php
$arr=array(&#39;a&#39;=>1,&#39;b&#39;=>2,&#39;c&#39;=>3,&#39;d&#39;=>5,&#39;e&#39;=>6); 

extract($arr); 

echo $a."<br>"; 
echo $b."<br>"; 
echo $c."<br>"; 
echo $d; 
?>

Output result:

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