Examples of foreach and list loop statements in php_PHP tutorial

The article focuses on the usage of foreach loop and list loop statements. Well, let’s take a look at the implementation. I won’t go into too much detail. Students in need can refer to it.

I recently bought a PHP and MySQL web development program and saw array loop statements. It’s worth paying attention to, and hereby leave some writing for future reading.

Generally foreach is used more

The code is as follows

代码如下	复制代码
$price=array('apple'=>10,'orange'=>20,'banner'=>30);     foreach($price as $key=>$value)     {         echo $key.'=>'.$value.' ';     }     echo ' '; ?>

Copy code

代码如下	复制代码
$shuiguo=array('apple'=>10,'orange'=>20,'banner'=>30);         while(list($changpin,$jiage)=each($shuiguo))     {         echo "$changpin=>$jiage".' ';     } ?>

$price=array('apple'=>10,'orange'=>20,'banner'=>30); foreach($price as $key=>$value)

{
echo $key.'=>'.$value.'
';

}

echo '
';

?>

代码如下	复制代码
$price=array('apple'=>10,'orange'=>20,'banner'=>30);     foreach($price as $key=>$value)     {         echo $key.'=>'.$value.' ';     }     echo ' ';     reset($price);     while(list($key,$value)=each($price))     {         echo "$key=>$value"," ";     } ?>

There is a more advanced and common method

The code is as follows

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$shuiguo=array('apple'=>10,'orange'=>20,'banner'=>30);   While(list($changpin,$jiage)=each($shuiguo)) { echo "$changpin=>$jiage".'
'; } ?> I really didn’t pay much attention to it before, but I did it myself today, which was pretty good. I learned something new again, but I’m still too good at it, eh The list() function can be used to decompose an array into a series of values, allowing new variables to be named. Those who don’t understand lists

http://www.bKjia.c0m/phper/24/032a7c95555c423729b071aef4afd3c4.htm

The output of the two pieces of code is the same.

It should be noted that when using the each() function, the array will record the current element. If you want to use the array twice in the same script. You need to use reset() to reset the current element to the beginning of the array.

The code is as follows

Copy code

$price=array('apple'=>10,'orange'=>20,'banner'=>30); foreach($price as $key=>$value) { echo $key.'=>'.$value.' '; } echo ' '; ​ reset($price); While(list($key,$value)=each($price)) { echo "$key=>$value"," "; } ?> This way you can still use the array $price. http://www.bkjia.com/PHPjc/629245.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/629245.htmlTechArticleThe article focuses on the usage of foreach loop and list loop statements. Well, let’s take a look at the implementation. I won’t go into too much detail. Students in need can refer to it. Recently bought...