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php实现中文转数字,
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php实现中文转数字,_PHP教程

Jul 12, 2016 am 08:58 AM
php

php实现中文转数字,

分享一个辅助函数,使用php尽可能识别出字符串中的数字,

先上代码

function checkNatInt($str) {
  $map = array(
    '一' => '1','二' => '2','三' => '3','四' => '4','五' => '5','六' => '6','七' => '7','八' => '8','九' => '9',
    '壹' => '1','贰' => '2','叁' => '3','肆' => '4','伍' => '5','陆' => '6','柒' => '7','捌' => '8','玖' => '9',
    '零' => '0','两' => '2',
    '仟' => '千','佰' => '百','拾' => '十',
    '万万' => '亿',
  ); 
 
  $str = str_replace(array_keys($map), array_values($map), $str);
  $str = checkString($str, '/([\d亿万千百十]+)/u');
 
  $func_c2i = function ($str, $plus = false) use(&$func_c2i) {
    if(false === $plus) {
      $plus = array('亿' => 100000000,'万' => 10000,'千' => 1000,'百' => 100,'十' => 10,);
    }  
 
    $i = 0;
    if($plus)
    foreach($plus as $k => $v) {
      $i++;
      if(strpos($str, $k) !== false) {
        $ex = explode($k, $str, 2); 
        $new_plus = array_slice($plus, $i, null, true);
        $l = $func_c2i($ex[0], $new_plus);
        $r = $func_c2i($ex[1], $new_plus);
        if($l == 0) $l = 1;
        return $l * $v + $r;
      }
    }
 
    return (int)$str;
  }
  return $func_c2i($str);
 }
 
 //来自uct php微信开发框架,其中的checkString函数如下
 function checkString($var, $check = '', $default = '') {
  if (!is_string($var)) {
    if(is_numeric($var)) {
      $var = (string)$var;
    }
    else {
      return $default;
    }
  }
  if ($check) {
     return (preg_match($check, $var, $ret) ? $ret[1] : $default);
  }
 
  return $var;
}

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实现效果如下。

echo checkNatInt('九百六十万'); //普通中文数字,9600000
echo checkNatInt('壹亿柒仟万零捌佰肆拾'); //大写中文数字,170000840
 
 
echo checkNatInt('学好PHP拿百万年薪'); //句子中的数字, 1000000
echo checkNatInt('今年春运发送人次达26亿'); //数字和汉字混合出现,2600000000
 
echo checkNatInt('两只小蜜蜂'); //口语化数字,2
echo checkNatInt('万万没想到'); //复古的表达方式,100000000
 

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注意事项

不支持小数

不支持大于PHP_INT_MAX的数

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