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PHP Gets the extension of the file in the url address
$url = 'http://www.abc.com/ab/cd/e.php?id=1&data=2#laowen'; echo pathinfo( parse_url($url)['path'] )['extension']; echo pathinfo( parse_url( $url, PHP_URL_PATH ), PATHINFO_EXTENSION );
Parsing:
parse_url($url);
parse_url()
This function parses the url and returns its components; returns an associative array
scheme 方案;如 http host 域名 port user 用户 pass path 路径 query 在问号?之后 fragment 在散列符号#之后
eg: print_r( $url );
Array( [scheme] = >http [host] => www.abc.com [path] => /ab/cd/e.php [query] => id=1&data=2 [fragment] => laowen )
Extension:
打印解析url var_dump(parse_url($url)); 打印url的scheme var_dump(parse_url($url, PHP_URL_SCHEME)); 打印url的user var_dump(parse_url($url, PHP_URL_USER)); 打印url的pass var_dump(parse_url($url, PHP_URL_PASS)); 打印url的host var_dump(parse_url($url, PHP_URL_HOST)); 打印url的port var_dump(parse_url($url, PHP_URL_PORT)); 打印url的path var_dump(parse_url($url, PHP_URL_PATH)); 打印url的query var_dump(parse_url($url, PHP_URL_QUERY)); 打印url的fragment var_dump(parse_url($url, PHP_URL_FRAGMENT));
pathinfo('/ab/cd/e.php');
pathinfo()
Parse the file path and return its components; return an associative array
dirname 文件路径 basename 文件名+扩展名 extension 最后一个扩展名 filename 文件名
#eg: print_r( pathinfo('/ab/cd/e.php') );
Array( [dirname] => /ab/cd [basename] => e.php [extension] => php [filename] => e )
Extension:
打印解析路径 var_dump( pathinfo($path) ); 打印路径的父级路径 var_dump( pathinfo($path, PATHINFO_DIRNAME) ); 打印路径的尾名 var_dump( pathinfo($path, PATHINFO_BASENAME) ); 打印路径的最后的扩展名 var_dump( pathinfo($path, PATHINFO_EXTENSION) ); 打印路径的文件的名字 var_dump( pathinfo($path, PATHINFO_FILENAME) );
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