?iť?
Your IP : 3.133.111.49
<?php
namespace Punic;
/**
* Numbers helpers.
*/
class Number
{
/**
* Check if a variable contains a valid number for the specified locale.
*
* @param string $value The string value to check
* @param string $locale The locale to use. If empty we'll use the default locale set in \Punic\Data
*
* @return bool
*/
public static function isNumeric($value, $locale = '')
{
return static::unformat($value, $locale) !== null;
}
/**
* Check if a variable contains a valid integer number for the specified locale.
*
* @param string $value The string value to check
* @param string $locale The locale to use. If empty we'll use the default locale set in \Punic\Data
*
* @return bool
*/
public static function isInteger($value, $locale = '')
{
$result = false;
$number = static::unformat($value, $locale);
if (is_int($number)) {
$result = true;
} elseif (is_float($number)) {
if ($number === floatval(round($number))) {
$result = true;
}
}
return $result;
}
/**
* Localize a number representation (for instance, converts 1234.5 to '1,234.5' in case of English and to '1.234,5' in case of Italian).
*
* @param numeric $value The string value to convert
* @param int|null $precision The wanted precision (well use {@link http://php.net/manual/function.round.php})
* @param string $locale The locale to use. If empty we'll use the default locale set in \Punic\Data
*
* @return string Returns an empty string $value is not a number, otherwise returns the localized representation of the number
*/
public static function format($value, $precision = null, $locale = '')
{
$result = '';
$number = null;
if (is_int($value) || is_float($value)) {
$number = $value;
} elseif (is_string($value) && isset($value[0])) {
if (preg_match('/^[\\-+]?\\d+$/', $value)) {
$number = intval($value);
} elseif (preg_match('/^[\\-+]?(\\d*)\\.(\\d*)$/', $value, $m)) {
if (!isset($m[1])) {
$m[1] = '';
}
if (!isset($m[2])) {
$m[2] = '';
}
if ((isset($m[1][0])) || (isset($m[2][0]))) {
$number = floatval($value);
if (!is_numeric($precision)) {
$precision = strlen($m[2]);
}
}
}
}
if ($number !== null) {
$precision = is_numeric($precision) ? intval($precision) : null;
if ($precision !== null) {
$value = round($value, $precision);
}
$data = Data::get('numbers', $locale);
$decimal = $data['symbols']['decimal'];
$groupLength = (isset($data['groupLength']) && is_numeric($data['groupLength'])) ? intval($data['groupLength']) : 3;
if ($value < 0) {
$sign = $data['symbols']['minusSign'];
$value = abs($value);
} else {
$sign = '';
}
$full = explode('.', strval($value), 2);
$intPart = $full[0];
$floatPath = (count($full) > 1) ? $full[1] : '';
$len = strlen($intPart);
if (($groupLength > 0) && ($len > $groupLength)) {
$groupSign = $data['symbols']['group'];
$preLength = 1 + (($len - 1) % 3);
$pre = substr($intPart, 0, $preLength);
$intPart = $pre.$groupSign.implode($groupSign, str_split(substr($intPart, $preLength), $groupLength));
}
$result = $sign.$intPart;
if ($precision === null) {
if (isset($floatPath[0])) {
$result .= $decimal.$floatPath;
}
} elseif ($precision > 0) {
$result .= $decimal.substr(str_pad($floatPath, $precision, '0', STR_PAD_RIGHT), 0, $precision);
}
}
return $result;
}
/**
* Convert a localized representation of a number to a number (for instance, converts the string '1,234' to 1234 in case of English and to 1.234 in case of Italian).
*
* @param string $value The string value to convert
* @param string $locale The locale to use. If empty we'll use the default locale set in \Punic\Data
*
* @return int|float|null Returns null if $value is not valid, the numeric value otherwise
*/
public static function unformat($value, $locale = '')
{
$result = null;
if (is_int($value) || is_float($value)) {
$result = $value;
} elseif (is_string($value) && isset($value[0])) {
$data = Data::get('numbers', $locale);
$plus = $data['symbols']['plusSign'];
$plusQ = preg_quote($plus);
$minus = $data['symbols']['minusSign'];
$minusQ = preg_quote($minus);
$decimal = $data['symbols']['decimal'];
$decimalQ = preg_quote($decimal);
$group = $data['symbols']['group'];
$groupQ = preg_quote($group);
$ok = true;
if (preg_match('/^'."($plusQ|$minusQ)?(\\d+(?:$groupQ\\d+)*)".'$/', $value, $m)) {
$sign = $m[1];
$int = $m[2];
$float = null;
} elseif (preg_match('/^'."($plusQ|$minusQ)?(\\d+(?:$groupQ\\d+)*)$decimalQ".'$/', $value, $m)) {
$sign = $m[1];
$int = $m[2];
$float = '';
} elseif (preg_match('/^'."($plusQ|$minusQ)?(\\d+(?:$groupQ\\d+)*)$decimalQ(\\d+)".'$/', $value, $m)) {
$sign = $m[1];
$int = $m[2];
$float = $m[3];
} elseif (preg_match('/^'."($plusQ|$minusQ)?$decimalQ(\\d+)".'$/', $value, $m)) {
$sign = $m[1];
$int = '0';
$float = $m[2];
} else {
$ok = false;
$float = $int = $sign = null;
}
if ($ok) {
if ($sign === $minus) {
$sign = '-';
} else {
$sign = '';
}
$int = str_replace($group, '', $int);
if ($float === null) {
$result = intval("$sign$int");
} else {
$result = floatval("$sign$int.$float");
}
}
}
return $result;
}
}