我目前有一個17列寬的表,有30個記錄。更新MySQL中的所有記錄
基本上,它是從另一個網站的表中,我刮,然後插入MySQL表。
$html = str_get_html($newHTML); // get the HTML
$tdContents = ""; // declare variable
$rowArray = array(); // declare array for records
for ($j = 0; $j < 510; $j++) // loop through each TD element, 17 columns by 30 records so 510
{
$f = $html->find("td",$j); // get the td elements from the html
$tdContents = $f->innertext; // get the text inside the td
$rowArray[] = $tdContents; // store that text inside the array
if ($j == 16 || $j == 33 || $j == 50 || $j == 67 || $j == 84 || $j == 101 || $j == 118 || $j == 135 || $j == 152 || $j == 169 || $j == 186 || $j == 203 || $j == 220 || $j == 237 || $j == 254 || $j == 271 || $j == 288 || $j == 305 || $j == 322 || $j == 339 || $j == 356 || $j == 373 || $j == 390 || $j == 407 || $j == 424 || $j == 441 || $j == 458 || $j == 475 || $j == 492 || $j == 509) // every 17 td elements
{
$comma_separated = implode("','", $rowArray); // seperate the array contents with commas and apostrophes, set up for mysql
$comma_separated = "'" . $comma_separated . "'"; // add apostrophes to beginning and end of the string
$result = mysql_query("INSERT INTO standings_20112012 VALUES (".$comma_separated.")"); // insert the data into mysql
$rowArray = array(); // clear the array, for the next record
}
}
評論應該說明很好。這會生成一張表格17 x 30,包含我需要的所有信息。如果我再次運行它,它會插入另外30條記錄,這是不好的。我只想更新/覆蓋等已經創建的表。所以表中只能有30條記錄。然而,我很難過。
任何幫助?
首先'if($ j == 16 || $ j == 33 ...)'是'if(($ j + 1)%17 == 0)'...... – Peter
每次插入,檢查記錄是否已經存在。如果有,請檢查是否需要更新。如果不存在,則插入。 – xbonez
mysql有一個'替換命令' – ajreal