Convert Number into words using PHP

In this article, we are going to learn to convert number into words using PHP.
We have a PHP function which simply returns the word for the corresponding numeric value passed to it.
PHP Function to convert number into words
<?php function convertNumber($num = false) { $num = str_replace(array(',', ''), '' , trim($num)); if(! $num) { return false; } $num = (int) $num; $words = array(); $list1 = array('', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine', 'ten', 'eleven', 'twelve', 'thirteen', 'fourteen', 'fifteen', 'sixteen', 'seventeen', 'eighteen', 'nineteen' ); $list2 = array('', 'ten', 'twenty', 'thirty', 'forty', 'fifty', 'sixty', 'seventy', 'eighty', 'ninety', 'hundred'); $list3 = array('', 'thousand', 'million', 'billion', 'trillion', 'quadrillion', 'quintillion', 'sextillion', 'septillion', 'octillion', 'nonillion', 'decillion', 'undecillion', 'duodecillion', 'tredecillion', 'quattuordecillion', 'quindecillion', 'sexdecillion', 'septendecillion', 'octodecillion', 'novemdecillion', 'vigintillion' ); $num_length = strlen($num); $levels = (int) (($num_length + 2) / 3); $max_length = $levels * 3; $num = substr('00' . $num, -$max_length); $num_levels = str_split($num, 3); for ($i = 0; $i < count($num_levels); $i++) { $levels--; $hundreds = (int) ($num_levels[$i] / 100); $hundreds = ($hundreds ? ' ' . $list1[$hundreds] . ' hundred' . ( $hundreds == 1 ? '' : '' ) . ' ' : ''); $tens = (int) ($num_levels[$i] % 100); $singles = ''; if ( $tens < 20 ) { $tens = ($tens ? ' and ' . $list1[$tens] . ' ' : '' ); } elseif ($tens >= 20) { $tens = (int)($tens / 10); $tens = ' and ' . $list2[$tens] . ' '; $singles = (int) ($num_levels[$i] % 10); $singles = ' ' . $list1[$singles] . ' '; } $words[] = $hundreds . $tens . $singles . ( ( $levels && ( int ) ( $num_levels[$i] ) ) ? ' ' . $list3[$levels] . ' ' : '' ); } //end for loop $commas = count($words); if ($commas > 1) { $commas = $commas - 1; } $words = implode(' ', $words); $words = preg_replace('/^\s\b(and)/', '', $words ); $words = trim($words); $words = ucfirst($words); $words = $words . "."; return $words; }
Call the function as below :
<?php echo convertNumber(4445); echo convertNumber(785); ?>
Follow this video for complete guidance :