How Can I Modify Array Values Within a Foreach Loop in PHP?

Modifying Array Values Using Foreach Loop

To modify an array's values during a foreach loop, you need to address the correct memory location. The typical foreach loop iterates over a copy of the values, which can lead to unexpected results when trying to modify the original array.

Solution 1: Direct Memory Reference

To modify the array values directly, you can use a reference (&) before the $value variable in the foreach loop. This ensures that you are modifying the original array's memory location, rather than a copy.

foreach ($bizaddarray as &$value) {
    $value = strip_tags(ucwords(strtolower($value)));
}
unset($value); // Remove the reference

Solution 2: Accessing Values from Source Array

Alternatively, you can access the original array values using the key in the foreach loop. This method is particularly useful when dealing with associative arrays.

foreach ($bizaddarray as $key => $value) {
    $bizaddarray[$key] = strip_tags(ucwords(strtolower($value)));
}

By using either of these methods, you can permanently modify the array values during the foreach loop, ensuring that the stripped tags remain removed when converting the array to a string.

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