Home Backend Development PHP Problem Is it possible for php to return the corresponding array?

Is it possible for php to return the corresponding array?

Aug 10, 2023 pm 01:34 PM
php php array Return array

php can return the corresponding array. There are two methods: 1. Use the "array_filter()" function to filter the array elements according to the conditions of the callback function and return a new array that meets the conditions; 2. Use "foreach" Loop through the array to determine whether each element meets the conditions, and then put the elements that meet the conditions into a new array.

Is it possible for php to return the corresponding array?

Operating system for this tutorial: Windows 10 system, php8.1.3 version, Dell G3 computer.

To return the corresponding array element based on a certain value, you can use the following method:

  1. Use the array_filter() function:

    This function can filter array elements according to the conditions of the callback function and return a new array that meets the conditions

       $array = array(
           array('id' => 1, 'name' => 'apple'),
           array('id' => 2, 'name' => 'banana'),
           array('id' => 3, 'name' => 'orange')
       );
       $id = 2; // 要查找的 ID
       result=arrayfilter(result = array_filter(result=arrayfilter(array, function(item)use(item) use (item)use(id) {
           return item[′id′]==item['id'] == item[′id′]==id;
       });
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  2. Use foreach loop to traverse:

    By traversing the array, determine whether each element meets the conditions, and then put the elements that meet the conditions into a new array.

       $array = array(
           array('id' => 1, 'name' => 'apple'),
           array('id' => 2, 'name' => 'banana'),
           array('id' => 3, 'name' => 'orange')
       );
       $id = 2; // 要查找的 ID
       $result = array();
       foreach (arrayasarray as arrayasitem) {
           if (item[′id′]==item['id'] == item[′id′]==id) {
               result[]=result[] = result[]=item;
           }
       }
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Both of the above two methods can return the corresponding array element based on a certain value. Please choose the appropriate method according to the specific situation.

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