Php converts Chinese characters to numbers, and the implementation method is very intelligent,

Php converts Chinese characters to numbers, and the implementation method is very intelligent,

Share an auxiliary function and use php to identify the numbers in the string as much as possible. The effect is as follows.

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echo checkNatInt('123'); // Common Chinese number, 9600000echo checkNatInt('Hundreds of millions of users can pick it up with zero scale'); // Uppercase Chinese number, 170000840echo checkNatInt('The annual salary of one million for learning PHP'); // Number in the sentence, 1000000echo checkNatInt('The number of people sent this Spring Festival reaches 2.6 billion'); // Mix numbers and Chinese characters, 2600000000 echo checkNatInt('Two bees'); // Colloquial number, 2echo checkNatInt('Never expected'); // Retro expression, 100000000

 

Notes

1. Decimal places not supported

2. PHP_INT_MAX is not supported.

 

Partial implementation code

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function checkNatInt($str) {    $map = array(        '1' => '1','2' => '2','3' => '3','4' => '4','5' => '5','6' => '6','7' => '7','8' => '8','9' => '9',        'Yi' => '1','Er' => '2','San' => '3','Ta' => '4','Wo' => '5','Loan' => '6','Authorization' => '7','Authorization' => '8','Authorization' => '9',        '0' => '0','Two' => '2',        'Authorization' => 'Kilo','Authorization' => 'Bai','Pick' => '10',        'Ten thousand' => 'Yi',    );       $str = str_replace(array_keys($map), array_values($map), $str);    $str = checkString($str, '/([\ D hundreds of millions] +)/U');     $func_c2i = function ($str, $plus = false) use(&$func_c2i) {        if(false === $plus) {            $plus = array('Yi' => 100000000,'Wan' => 10000,'Kilo' => 1000,'Bai' => 100,'10' => 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);  }   // From the uct php development framework, where the checkString function is as follows  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;}