如何在PHP中将字符串拆分为3个不同的变量？

问题描述：

I have a bunch of checkboxes with the names like the following:

q1_week1_monday

How can i split these strings into 3 different variables, for example

$quarter = q1;
$week = 1;
$day = monday;

Thanks

我有一堆复选框，其名称如下： p>

   q1_week1_monday 
  code>  pre> 
 
 如何将这些字符串拆分为3个不同的变量，例如 p> 
 
 
  $ quarter  = q1; 
 $ week = 1; 
 $ day =星期一; 
  code>  pre> 
 
 谢谢 p> 
  div>

答

Use explode() to split the string and the list construct to assign the parts to the variables. Afterwards, get rid of the week-prefix, using regexp.

list ($quarter, $week, $day) = explode("_", "q1_week1_monday")
$week = preg_replace("#week(\d+)#", "$1", $week);

答

Use explode() to split the string by a delimiter (_) and then use filter_var() to get the week number.

$str = 'q1_week1_monday';
$parts = explode('_', $str);
$quarter = $parts[0];
$week = filter_var($parts[1], FILTER_SANITIZE_NUMBER_INT);
$day = $parts[2];

Using list() construct (a bit more neater):

list($quarter, $week, $day) = explode('_', $str);
$week = filter_var($week, FILTER_SANITIZE_NUMBER_INT);

Note: This assumes the middle part of the string contains only one number.

Demo!

答

Make use of explode() and access it as variables like this

$str="q1_week1_monday";
$str=explode('_',$str);
$quarter = $str[0];//q1
$week = intval($str[1]);//1
$day = $str[2];//monday

如何在PHP中将字符串拆分为3个不同的变量？

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