(PHP 4 >= 4.0.3, PHP 5, PHP 7)
pathinfo — 锟斤拷锟斤拷锟侥硷拷路锟斤拷锟斤拷锟斤拷息
$path
[, int $options = PATHINFO_DIRNAME | PATHINFO_BASENAME | PATHINFO_EXTENSION | PATHINFO_FILENAME
] ) : mixed
pathinfo() 锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟� path
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path要锟斤拷锟斤拷锟斤拷路锟斤拷锟斤拷
options
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锟斤拷 PATHINFO_EXTENSION 锟斤拷 PATHINFO_FILENAME锟斤拷
锟斤拷锟矫伙拷锟街革拷锟� options 默锟斤拷锟角凤拷锟斤拷全锟斤拷锟侥碉拷元锟斤拷
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锟斤拷 extension锟斤拷锟斤拷锟斤拷校锟斤拷锟斤拷锟� 锟斤拷filename锟斤拷
Note:
If the
pathdoes not have an extension, no extension element will be returned锟斤拷锟斤拷锟铰第讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷
If options is present, returns a
string containing the requested element.
| 锟芥本 | 说锟斤拷 |
|---|---|
| 5.2.0 |
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|
Example #1 pathinfo() 锟斤拷锟斤拷
<?php
$path_parts = pathinfo('/www/htdocs/inc/lib.inc.php');
echo $path_parts['dirname'], "\n";
echo $path_parts['basename'], "\n";
echo $path_parts['extension'], "\n";
echo $path_parts['filename'], "\n"; // since PHP 5.2.0
?>
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/www/htdocs/inc lib.inc.php php lib.inc
Example #2 pathinfo() example showing difference between null and no extension
<?php
$path_parts = pathinfo('/path/emptyextension.');
var_dump($path_parts['extension']);
$path_parts = pathinfo('/path/noextension');
var_dump($path_parts['extension']);
?>
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string(0) "" Notice: Undefined index: extension in test.php on line 6 NULL
Note:
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Note:
pathinfo() is locale aware, so for it to parse a path containing multibyte characters correctly, the matching locale must be set using the setlocale() function.