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How to delete a string from an array in php
- PHPzOriginal
- 2023-04-25 09:20:07603browse
In PHP, you can use the unset function to delete elements from an array. Afterwards, you can use the array_values function to rearrange the array so that the holes created in the array are removed after removing elements.
The following example demonstrates how to delete a string from a PHP array using the unset and array_values functions.
// 创建一个包含字符串的数组
$fruits = array("apple", "banana", "grape", "orange");
// 查找要删除的字符串的索引
$search = array_search("banana", $fruits);
// 如果找到了要删除的字符串，则从数组中删除它
if($search !== false) {
unset($fruits[$search]);
}
// 重新排列数组，以便删除后删除产生的空隙
$fruits = array_values($fruits);
// 显示新的数组
print_r($fruits);
In the above code, we first create an array containing four fruits. Next, we use the array_search function to find the index of the string ("banana") in the array that we want to delete. If the string you want to delete is found, use the unset function to delete it from the array. Finally, we use the array_values function to rearrange the array to remove the holes created after deleting array elements. Finally, we use the print_r function to print the new array.
Output:
Array ( [0] => apple [1] => grape [2] => orange )
As you can see, the string "banana" has been removed from the array, and now there are no holes in the array.
Summary:
In PHP, you can easily remove elements from an array using the unset function. To avoid creating holes in the array, the array can be rearranged using the array_values function.
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