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把字符内容转换为二进制

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2016-05-25 17:04:581074browse

把字符内容转换为二进制

<?php
header("charset=utf-8;");

function StrToBin($str){
    //1.列出每个字符
    $arr = preg_split(&#39;/(?<!^)(?!$)/u&#39;, $str);
    //2.unpack字符
    foreach($arr as &$v){
        $temp = unpack(&#39;H*&#39;, $v);
        $v = base_convert($temp[1], 16, 2);
        unset($temp);
    }

    return join(&#39; &#39;,$arr);
}

function BinToStr($str){
    $arr = explode(&#39; &#39;, $str);
    foreach($arr as &$v){
        $v = pack("H".strlen(base_convert($v, 2, 16)), base_convert($v, 2, 16));
    }

    return join(&#39;&#39;, $arr);
}

echo StrToBin("哈哈hhh123");
echo &#39;
&#39;;
echo BinToStr(StrToBin("哈哈hhh123"));

                   

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