How to modify an array’s values by a foreach loop?

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Two ways, you can alter the memory location shared by the current value directly, or access the value using the source array.

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

Or

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

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