|
Home
iRate! IceMelon IM Tutorials Headlines CoolSites PHP Functions |
Most Referenced Functions » google_pagerank() » preg_replace() » imagecreatefrompng() » site_pageranks() » imagepng() » imagedestroy() » imagestring() » imagecolorallocate() » htmlentities() » fopen() » preg_match() » header() » getimagesize() » htmlspecialchars() » ob_start() » session_start() » strstr() » ob_flush() » preg_match_all() » strpos() » setcookie() » flush() » str_replace() » array2vars() » nl2br() » preg_split() » ereg() » urlencode() » ereg_replace() » readgzfile() Become a sponsor for $15/month. Link is sitewide - PR5 homepage, 20+ PR4 pages, 90+ PR3 pages. Email dave[AT]icemelon[D0T]c0m. |
PHP Functions
Function: mysql_data_seek (PHP 3, PHP 4, PHP 5) mysql_data_seek -- Move internal result pointerDescriptionbool mysql_data_seek ( resource result, int row_number )mysql_data_seek() moves the internal row pointer of the MySQL result associated with the specified result identifier to point to the specified row number. The next call to mysql_fetch_row() would return that row. row_number starts at 0. The row_number should be a value in the range from 0 to mysql_num_rows() - 1. However if the result set is empty ( mysql_num_rows() == 0), a seek to 0 will fail with a E_WARNING and mysql_data_seek() will return FALSE . Parameters
result The result resource that is being evaluated. This result comes from a call to mysql_query() . row_numberThe desired row number of the new result pointer. Return ValuesReturns TRUE on success or FALSE on failure. Examples
Example 1. mysql_data_seek() example <?php $link = mysql_connect('localhost', 'mysql_user', 'mysql_password'); if (!$link) { die('Could not connect: ' . mysql_error()); } $db_selected = mysql_select_db('sample_db'); if (!$db_selected) { die('Could not select database: ' . mysql_error()); } $query = 'SELECT last_name, first_name FROM friends'; $result = mysql_query($query); if (!$result) { die('Query failed: ' . mysql_error()); } /* fetch rows in reverse order */ for ($i = mysql_num_rows($result) - 1; $i >= 0; $i--) { if (!mysql_data_seek($result, $i)) { echo "Cannot seek to row $i: " . mysql_error() . "\n"; continue; } if (!($row = mysql_fetch_assoc($result))) { continue; } echo $row['last_name'] . ' ' . $row['first_name'] . "<br />\n"; } mysql_free_result($result); ?> NotesNote: The function mysql_data_seek() can be used in conjunction only with mysql_query() , not with mysql_unbuffered_query() . Related Function(s) |