Сократить длинные числа до K / M / B?

Используйте number_format() :

 if ($n < 1000000) { // Anything less than a million $n_format = number_format($n); } else if ($n < 1000000000) { // Anything less than a billion $n_format = number_format($n / 1000000, 3) . 'M'; } else { // At least a billion $n_format = number_format($n / 1000000000, 3) . 'B'; } 

Я бы полностью оценил любые пользовательские функции, чтобы динамически выбирать предел, если это возможно.

Если «limit» относится к числу десятичных знаков (точность), это легко:

 function custom_number_format($n, $precision = 3) { if ($n < 1000000) { // Anything less than a million $n_format = number_format($n); } else if ($n < 1000000000) { // Anything less than a billion $n_format = number_format($n / 1000000, $precision) . 'M'; } else { // At least a billion $n_format = number_format($n / 1000000000, $precision) . 'B'; } return $n_format; } 

Я взял ответ, предоставленный BoltClock, и немного изменил его с учетом простоты настройки.

 // Shortens a number and attaches K, M, B, etc. accordingly function number_shorten($number, $precision = 3, $divisors = null) { // Setup default $divisors if not provided if (!isset($divisors)) { $divisors = array( pow(1000, 0) => '', // 1000^0 == 1 pow(1000, 1) => 'K', // Thousand pow(1000, 2) => 'M', // Million pow(1000, 3) => 'B', // Billion pow(1000, 4) => 'T', // Trillion pow(1000, 5) => 'Qa', // Quadrillion pow(1000, 6) => 'Qi', // Quintillion ); } // Loop through each $divisor and find the // lowest amount that matches foreach ($divisors as $divisor => $shorthand) { if (abs($number) < ($divisor * 1000)) { // We found a match! break; } } // We found our match, or there were no matches. // Either way, use the last defined value for $divisor. return number_format($number / $divisor, $precision) . $shorthand; } 

 <?php // Converts a number into a short version, eg: 1000 -> 1k // Based on: http://stackoverflow.com/a/4371114 function number_format_short( $n, $precision = 1 ) { if ($n < 900) { // 0 - 900 $n_format = number_format($n, $precision); $suffix = ''; } else if ($n < 900000) { // 0.9k-850k $n_format = number_format($n / 1000, $precision); $suffix = 'K'; } else if ($n < 900000000) { // 0.9m-850m $n_format = number_format($n / 1000000, $precision); $suffix = 'M'; } else if ($n < 900000000000) { // 0.9b-850b $n_format = number_format($n / 1000000000, $precision); $suffix = 'B'; } else { // 0.9t+ $n_format = number_format($n / 1000000000000, $precision); $suffix = 'T'; } // Remove unecessary zeroes after decimal. "1.0" -> "1"; "1.00" -> "1" // Intentionally does not affect partials, eg "1.50" -> "1.50" if ( $precision > 0 ) { $dotzero = '.' . str_repeat( '0', $precision ); $n_format = str_replace( $dotzero, '', $n_format ); } return $n_format . $suffix; } /* Example Usage: number_format_short(7201); // Output: 7.2k Demo: echo '<table>'; for($d = 0; $d < 16; $d++ ) { $n = intval("09" . str_repeat( "0", $d )); $n = $n / 10; echo number_format_short($n) .'<br>'; // 0.9 $n = intval("1" . str_repeat( "0", $d )); echo number_format_short($n) .'<br>'; // 1.0 $n = intval("11" . str_repeat( "0", $d ));; $n = $n / 10; echo number_format_short($n) .'<br>'; // 1.1 } echo '</table>'; Demo Output: 0.9 1 1.1 9 10 11 90 100 110 0.9K 1K 1.1K 9K 10K 11K 90K 100K 110K 0.9M 1M 1.1M 9M 10M 11M 90M 100M 110M 0.9B 1B 1.1B 9B 10B 11B 90B 100B 110B 0.9T 1T 1.1T 9T 10T 11T 90T 100T 110T 900T 1,000T 1,100T */ - <?php // Converts a number into a short version, eg: 1000 -> 1k // Based on: http://stackoverflow.com/a/4371114 function number_format_short( $n, $precision = 1 ) { if ($n < 900) { // 0 - 900 $n_format = number_format($n, $precision); $suffix = ''; } else if ($n < 900000) { // 0.9k-850k $n_format = number_format($n / 1000, $precision); $suffix = 'K'; } else if ($n < 900000000) { // 0.9m-850m $n_format = number_format($n / 1000000, $precision); $suffix = 'M'; } else if ($n < 900000000000) { // 0.9b-850b $n_format = number_format($n / 1000000000, $precision); $suffix = 'B'; } else { // 0.9t+ $n_format = number_format($n / 1000000000000, $precision); $suffix = 'T'; } // Remove unecessary zeroes after decimal. "1.0" -> "1"; "1.00" -> "1" // Intentionally does not affect partials, eg "1.50" -> "1.50" if ( $precision > 0 ) { $dotzero = '.' . str_repeat( '0', $precision ); $n_format = str_replace( $dotzero, '', $n_format ); } return $n_format . $suffix; } /* Example Usage: number_format_short(7201); // Output: 7.2k Demo: echo '<table>'; for($d = 0; $d < 16; $d++ ) { $n = intval("09" . str_repeat( "0", $d )); $n = $n / 10; echo number_format_short($n) .'<br>'; // 0.9 $n = intval("1" . str_repeat( "0", $d )); echo number_format_short($n) .'<br>'; // 1.0 $n = intval("11" . str_repeat( "0", $d ));; $n = $n / 10; echo number_format_short($n) .'<br>'; // 1.1 } echo '</table>'; Demo Output: 0.9 1 1.1 9 10 11 90 100 110 0.9K 1K 1.1K 9K 10K 11K 90K 100K 110K 0.9M 1M 1.1M 9M 10M 11M 90M 100M 110M 0.9B 1B 1.1B 9B 10B 11B 90B 100B 110B 0.9T 1T 1.1T 9T 10T 11T 90T 100T 110T 900T 1,000T 1,100T */ 

CakePHP имеет Number Helper с методом toReadableSize . Вы должны быть в состоянии понять его и придумать что-то по своему усмотрению. В нем $this->precision в основном похожа на number_format() , а __n – __n единственного числа или множественного числа.

Вы можете попробовать это

  function number_formation($number, $precision = 3) { if ($number < 1000000) { $formatted_number = number_format($number); /* less than a million */ } else if ($number < 1000000000) { $formatted_number = number_format($number / 1000000, $precision) . 'M'; /* billion */ } else { $formatted_number = number_format($number / 1000000000, $precision) . 'B'; /* for billion */ } return $formatted_number; } 

Попробуй это

 function custom_number_format($n, $precision = 1) { if ($n < 900) { // Default $n_format = number_format($n); } else if ($n < 900000) { // Thausand $n_format = number_format($n / 1000, $precision). 'K'; } else if ($n < 900000000) { // Million $n_format = number_format($n / 1000000, $precision). 'M'; } else if ($n < 900000000000) { // Billion $n_format = number_format($n / 1000000000, $precision). 'B'; } else { // Trillion $n_format = number_format($n / 1000000000000, $precision). 'T'; } return $n_format; }