The most straightforward way to get all values ??in a PHP array is to use the array_values() function. 1. array_values() can directly extract all values ??in the array and reset the index; 2. This method is suitable for associative arrays and index arrays, which is especially convenient when processing data returned by the database or API; 3. If you need to process each value extra, you can use foreach traversal to extract manually; 4. Note that array_values() does not recursively process multi-dimensional arrays, and will discard the original key name. When using it, you should choose the appropriate method according to your needs.
The most straightforward way to get all values ??in a PHP array is to use the built-in function array_values() . It returns a new array containing only all values ??in the array, and the index is re-sorted from 0.
Use array_values() to get all values
This is the most common practice. Regardless of whether the array is an associative array or an index array, array_values() can help you extract all "values".
$arr = ['name' => 'Alice', 'age' => 25, 'city' => 'New York']; $values ??= array_values($arr); print_r($values); // Output: Array ( [0] => Alice [1] => 25 [2] => New York )
This function is especially useful when handling associative arrays returned from databases or APIs, especially when you only need values ??and no keys.
Manually extract values ??through the array (suitable for cases where additional processing is required)
If you not only want to get the value, but also want to do some operations on each value, you can use foreach to iterate through the array:
$values ??= [];
foreach ($arr as $value) {
$values[] = $value;
}Although this method has more code, it is more flexible, such as you can add judgment, format conversion, etc.
Note: Don't confuse key and value
- If you just want to iterate through the array to get the value, you don't need to extract it into an array, just use
foreach ($arr as $value)directly. - If the array is multidimensional (e.g., a two-dimensional array),
array_values()will only process the first layer and will not recursively extract all values. - After using
array_values(), the original key name will be discarded, so if you need to use the key name in the future, remember to save it in advance.
Basically that's it. Using array_values() is the fastest way. If you encounter special circumstances, consider manual traversal processing.
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