php怎么得到文件的后缀名
- WBOYOriginal
- 2016-06-21 09:06:211306browse
substr(strrchr(文件名,'.'),1);
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STRRCHR得到最后出现。点起的字/
SUBSTR
substr("abcdef", 1, 3); // 传回 "bcd"
字符截取。从1到三。
相关函数
strstr
传回字串中某字串开始处至结束的字串。
比如：“1。2。3。4”
STRTCHR得到是。4
STRSTR得到是。2。3。4
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$available_type = explode(' ',trim($db_uploadfiletype));
$attach_ext = substr(strrchr($atc_attachment_name,'.'),1);
in_array($attach_ext,$available_type)
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