php实现中文转数字,实现方式很智能很php
分享一个辅助函数,使用php尽可能识别出字符串中的数字,实现效果如下。
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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
部分实现代码
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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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