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To trim all strings in an array:Use the map() method to iterate over the array and call the trim() method on each array element. The map method will return a new array, containing only strings with the whitespace from both ends removed.
The trim() function removes whitespace and other predefined characters from both sides of a string. Related functions: ltrim() - Removes whitespace or other predefined characters from the left side of a string. rtrim() - Removes whitespace or other predefined characters from the right side of a string.
The array_map() is an inbuilt function in PHP and it helps to modify all elements one or more arrays according to some user-defined condition in an easy manner. It basically, sends each of the elements of an array to a user-defined function and returns an array with new values as modified by that function.
array_map and trim can do the job
$trimmed_array = array_map('trim', $fruit);
print_r($trimmed_array);
array_walk() can be used with trim() to trim array
<?php
function trim_value(&$value)
{
$value = trim($value);
}
$fruit = array('apple','banana ', ' cranberry ');
var_dump($fruit);
array_walk($fruit, 'trim_value');
var_dump($fruit);
?>
See 2nd example at http://www.php.net/manual/en/function.trim.php
Multidimensional-proof solution:
array_walk_recursive($array, function(&$arrValue, $arrKey){ $arrValue = trim($arrValue);});
I had trouble with the existing answers when using multidimensional arrays. This solution works for me.
if (is_array($array)) {
foreach ($array as $key => $val) {
$array[$key] = trim($val);
}
}
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