string '??54' (length=8)用什么函数能转换成int类型的？解决思路-PHP Tutorial-php.cn

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string '??54' (length=8)用什么函数能转换成int类型的？解决思路

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Jun 13, 2016 am 10:13 AM

bomdumpquotstring

string '??54' (length=8)用什么函数能转换成int类型的？
希望转换后的值仍为54.我试过intval和int，都不行，转换后都变成int0了。

------解决方案--------------------
估计是 bom头
var_dump(substr($str, 6));
------解决方案--------------------
$s = base64_decode('77u/77u/NTU=');
var_dump($s);

print_r(unpack('H*', $s));

string(8) "??55"
Array
(
[1] => efbbbfefbbbf3535
)

efbbbf 是 utf-8 编码文件的 BOM 头

你的数据是抓取的吧？

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