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Added url_to_postid() function 

git-svn-id: http://svn.automattic.com/wordpress/trunk@548 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
emc3 2003-11-14 18:55:41 +00:00
parent 64bb4e2e4f
commit 8f40eb47c0
1 changed files with 67 additions and 2 deletions
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69
b2-include/b2functions.php
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@ -165,8 +165,8 @@ function mysql2date($dateformatstring, $mysqlstring, $use_b2configmonthsdays = 1
}
$j = @date($dateformatstring, $i);
if (!$j) {
# // for debug purposes
# echo $i." ".$mysqlstring;
// for debug purposes
// echo $i." ".$mysqlstring;
}
return $j;
}
@ -463,6 +463,71 @@ function get_usernumposts($userid) {
return $wpdb->get_var("SELECT COUNT(*) FROM $tableposts WHERE post_author = $userid");
}
// examine a url (supposedly from this blog) and try to
// determine the post ID it represents.
function url_to_postid($url = '') {
global $wpdb, $tableposts, $siteurl;
// Take a link like 'http://example.com/blog/something'
// and extract just the '/something':
$uri = preg_replace("#$siteurl#i", '', $url);
// on failure, preg_replace just returns the subject string
// so if $uri and $siteurl are the same, they didn't match:
if ($uri == $siteurl)
return 0;
// First, check to see if there is a 'p=N' to match against:
preg_match('#[?&]p=(\d+)#', $uri, $values);
$p = intval($values[1]);
if ($p) return $p;
// Match $uri against our permalink structure
$permalink_structure = get_settings('permalink_structure');
// Matt's tokenizer code
$rewritecode = array(
'%year%',
'%monthnum%',
'%day%',
'%postname%'
);
$rewritereplace = array(
'([0-9]{4})?',
'([0-9]{1,2})?',
'([0-9]{1,2})?',
'([0-9a-z-]+)?'
);
// Turn the structure into a regular expression
$matchre = str_replace('/', '/?', $permalink_structure);
$matchre = str_replace($rewritecode, $rewritereplace, $matchre);
// Extract the key values from the uri:
preg_match("#$matchre#",$uri,$values);
// Extract the token names from the structure:
preg_match_all("#%(.+?)%#", $permalink_structure, $tokens);
for($i = 0; $i < count($tokens[1]); $i++) {
$name = $tokens[1][$i];
$value = $values[$i+1];
// Create a variable named $year, $monthnum, $day, or $postname:
$$name = $value;
}
// Build a WHERE clause, making the values safe along the way:
if ($year) $where .= " AND YEAR(post_date) = " . intval($year);
if ($monthnum) $where .= " AND MONTH(post_date) = " . intval($monthnum);
if ($day) $where .= " AND DAYOFMONTH(post_date) = " . intval($day);
if ($postname) $where .= " AND post_name = '" . $wpdb->escape($postname) . "' ";
// Run the query to get the post ID:
return intval($wpdb->get_var("SELECT ID FROM $tableposts WHERE 1 = 1 " . $where));
}
/* Options functions */
function get_settings($setting) {