I'm improving my search bars in a project's back-office.
I want to make a research in the protfolio table, joining the categorytable to include the category's names in the available keywords. Seems simple, but the only message I'll get is :
Warning: PDOStatement::execute(): SQLSTATE[42S22]: Column not found:
1054 Unknown column 'search_0' in 'where clause' in [...]
I am creating the SQL query dynamically before executing it, like this :
$keywords = explode(" ", $_POST['search']);
$query = "SELECT * FROM portfolio LEFT JOIN category
ON portfolio.portfolio_category_id = category.category_id
WHERE ";
$query_array = array();
for ($i = 0; $i < count($keywords); $i += 1) {
$query .= "portfolio.portfolio_title LIKE :search_" . $i;
$query .= " OR category.category_name LIKE search_" . $i;
if ($i != (count($keywords) - 1)) {
$query .= " OR ";
}
$query_array['search_' . $i] = "%" . $keywords[$i] . "%";
}
$list_portf = $bdd->prepare($query);
$list_portf->execute($query_array);
I'm not a crack in SQL I don't really understand where is the error (I didn't find an answer in the question I found). Thanks.
seems you missed colon : before your second ref to search_
" OR category.category_name LIKE :search_" . $i;
Related
I want to fetch data with AM/PM format, but before that, i need to choose a database to make this.
$event_name='database_name';
I also using INNER JOIN .
Can anybody know how to format time in this case?
$event_name='database name';
$conn = mysqli_connect($servername, $username, $password);
if (!$conn) {
die("Connection failed: " . mysqli_connect_error());}
$sql = "SELECT $event_name.student_login.LOG_IN, $event_name.student_login.TIME_FORMAT(LOG_IN,"%r"), event_attendance.student_data.* FROM event_attendance.student_data
inner JOIN $event_name.student_login ON $event_name.student_login.SERIAL = event_attendance.student_data.SERIAL order by $event_name.student_login.LOG_IN DESC";
//using (SERIAL)
$result = mysqli_query($conn, $sql);
$i = 1;
if (mysqli_num_rows($result) > 0) {
// output data of each row
while($row = mysqli_fetch_assoc($result)) {
echo "<td width='2'><center><B>".$i; $i++; echo"</B></center></td>";
echo "<td>" . $row["ID"]."</td>";
echo "<td>" . $row["LASTNAME"].", ". $row["FIRSTNAME"]." ". $row["MIDDLENAME"]."."."</td>";
echo "<td><center>" . $row["COURSE"]."</center></td>";
echo "<td><center>" . $row["YEAR"]."</center></td>";
echo "<td><center>" . $row["LOG_IN"] ."</center></td>";
echo "<td><center>" . $row["DATE"]."</center></td><tr>";
}
}
my code didn't work with this.
$event_name.student_login.TIME_FORMAT(LOG_IN,"%r")
TIME_FORMAT is an in-built MYSQL function and not a function of the table $event_name.student_login so using $event_name.student_login.TIME_FORMAT(LOG_IN,"%r") is wrong
Secondly, your query is in double quotes so you cannot directly use another double quote in the query string. So you need to change $event_name.student_login.TIME_FORMAT(LOG_IN,"%r") to TIME_FORMAT($event_name.student_login.LOG_IN, '%r')
Try this
$sql = "SELECT $event_name.student_login.LOG_IN, TIME_FORMAT($event_name.student_login.LOG_IN, '%r'), event_attendance.student_data.* FROM event_attendance.student_data inner JOIN $event_name.student_login ON $event_name.student_login.SERIAL = event_attendance.student_data.SERIAL order by $event_name.student_login.LOG_IN DESC";
or the cleaner version using alias
$sql = "SELECT sl.LOG_IN, TIME_FORMAT(sl.LOG_IN, '%r'), sd.* FROM event_attendance.student_data sd inner JOIN $event_name.student_login sl ON sl.SERIAL = sd.SERIAL order by sl.LOG_IN DESC";
need quick help.
I am creating a dynamic MySQL query for keywords and wants to search only those keyword having more than 3 characters. I have created query but I don't know how to search only for more than three characters?
here is query I wrote
$returned_results = array ();
$where = "";
$keywords = preg_split('/[\s]+/', $keywords);
$total_keywords = count($keywords);
foreach ($keywords as $key=>$keyword)
{
$where .= "keywords LIKE '%$keyword%'";
if ($key != ($total_keywords - 1))
$where .= " OR ";
}
$query = "SELECT title, url FROM pages WHERE $where";
In the where clause you add the code below
and CHAR_LENGTH('keywords') > 3
With this clause you get the lines which keyword length it more than 3
You may use strlen to filter keywords which have length greater than 3 chars.
foreach ($keywords as $key=>$keyword){
if(strlen($keyword) > 3){
$where .= "keywords LIKE '%$keyword%'";
if ($key != ($total_keywords - 1))
$where .= " OR ";
}
}
I have a form where I want a user to enter one or more words. These words should then match mutiple columns in a MySQL database.
I have started to build some code but I'm stuck.
<?php
$term = $_SESSION['session_searchstring']; //Let's say that session is John Doe
$searchterm = explode(' ',$term);
$searchFieldName = "name";
$searchCondition = "$searchFieldName LIKE '%" . implode("%' OR $searchFieldName LIKE '%", $searchterm) . "%'";
$sql = "SELECT * FROM students WHERE $searchCondition;";
echo $sql; //Echo to test what mysql_query would look like
?>
The above code will output:
SELECT * FROM students WHERE name LIKE '%John%' OR name LIKE '%Doe%';
The problem is that I want to search in multiple columns ($searchFieldName). I have for example
customer_firstname
customer_lastname
And I want to match my searchstring against the content of both columns.. How would I continue?
Perhaps
$term = $_SESSION['session_searchstring']; //Let's say that session is John Doe
$searchterm = explode(' ',$term);
$searchColumns = array("customer_firstname","customer_lastname");
for($i = 0; $i < count($searchColumns); $i++)
{
$searchFieldName = $searchColumns[$i];
$searchCondition .= "($searchFieldName LIKE '%" . implode("%' OR $searchFieldName LIKE '%", $searchterm) . "%')";
if($i+1 < count($searchColumns)) $searchCondition .= " OR ";
}
$sql = "SELECT * FROM students WHERE $searchCondition;";
echo $sql; //Echo to test what mysql_query would look like
Produces
SELECT * FROM students WHERE (customer_firstname LIKE '%John%' OR customer_firstname LIKE '%Doe%') OR (customer_lastname LIKE '%John%' OR customer_lastname LIKE '%Doe%');
If your table is of MyIsam type or you can convert it to MyIsam, use MySQL Fulltext Search. if not, anyway, you can build a long query like
SELECT * FROM students WHERE name LIKE '%John%' OR name LIKE '%Doe%' OR lastname LIKE "%John%" OR lastname LIKE "%Doe%"
or union your columns into one another just for search (but this both are not prefered).
Also a good approach is to use fulltext search engines like Sphinx.
In my case I needed all search phrases/terms to match at least one column, no search phrase/term could be a no-match.
I ended up tweaking the example from Kermit in the following way:
public function getRawWhereFilterForColumns($filter, $search_columns)
{
$search_terms = explode(' ', $filter);
$search_condition = "";
for ($i = 0; $i < count($search_terms); $i++) {
$term = $search_terms[$i];
for ($j = 0; $j < count($search_columns); $j++) {
if ($j == 0) $search_condition .= "(";
$search_field_name = $search_columns[$j];
$search_condition .= "$search_field_name LIKE '%" . $term . "%'";
if ($j + 1 < count($search_columns)) $search_condition .= " OR ";
if ($j + 1 == count($search_columns)) $search_condition .= ")";
}
if ($i + 1 < count($search_terms)) $search_condition .= " AND ";
}
return $search_condition;
}
I only needed the contents of the Where-clause since I'm using Laravel and could put that into the rawWhere-method.
usage:
$search_condition = $this->getRawWhereFilterForColumns
("John Doe", array("column1", "column2"));
which produces
(column1 LIKE '%John%' OR column2 LIKE '%John%')
AND (column1 LIKE '%Doe%' OR column2 LIKE '%Doe%')
And finally you use this $search_condition in whatever way suits you, for example:
$sql = "SELECT * FROM students WHERE $search_condition;";
Or in my Laravel-case:
$modelInstances = Model::whereRaw
($search_condition)->paginate(self::ITEMS_PER_PAGE);
Perhaps this is an improved solution for either David or anybody else visiting this thread, like me, even if it's almost two years after the original post.
after some researching I put this code together to search a mysql table in the db. while it works fine, it limit itself to match the words exactly as the user enters it. anyone know how to make it so that it matches my some sort of relevancy? I have been reading about the full text search but I cant really seem to grasp it.
for example, if you search for 'unanswered questions' in two fields, I want to be able to get result like that include the searched word(s) in any string that it show up in, and list it according to relevancy, like so (search results example output):
- unanswered questions
- answered questions
- answer question
- unanswered questions
- unanswered questions
- questions
- answer
$k = trim ($_GET['search']);
$i = "";
$terms = explode (" ", $k);
$query = "SELECT * FROM table1 WHERE ";
foreach ($terms as $each){
$i++;
if ($i == 1)
$query .= "fld_title LIKE '%$each%' OR fld_keyword LIKE '%$each%' ";
else
$query .= "OR fld_title LIKE '%$each%' OR fld_keyword LIKE '%$each%' ";
}
// connect
include_once "connect.php"; //connect 2 db
$query = mysql_query($query);
$numrows = mysql_num_rows ($query);
if ($numrows > 0){
while ($row = mysql_fetch_assoc ($query)){
//
//
// echo out something here
//
//
}
}else
{
echo "No results found for <b>$k</b>";
}
to do a fulltext search you have to:
Create a Fulltext index in the table (note the fields can't be BLOB)
ALTER TABLE tablename ADD FULLTEXT(field1, field2,...);
in your case:
ALTER TABLE table1 ADD FULLTEXT(fld_title, fld_keyword);
in php change
$k = trim ($_GET['search']);
$i = "";
$terms = explode (" ", $k);
$query = "SELECT * FROM table1 WHERE ";
foreach ($terms as $each){
$i++;
if ($i == 1)
$query .= "fld_title LIKE '%$each%' OR fld_keyword LIKE '%$each%' ";
else
$query .= "OR fld_title LIKE '%$each%' OR fld_keyword LIKE '%$each%' ";
}
for
$k = trim ($_GET['search']);
$query="SELECT * FROM table1 WHERE MATCH(fld_title, fld_keyword) AGAINST ('".$k."')";
if you want to see the relevancy of the results:
$query="SELECT *, MATCH(fld_title, fld_keyword) AGAINST ('".$k."') as relevancy FROM table1 WHERE MATCH(fld_title, fld_keyword) AGAINST ('".$k."')";
The MATCH-AGAINST returns a number: 0 for no match or other depending on matching.
You can "order by relevancy", change the query for make more relevant the search... MATCH(fld_title, fld_keyword) AGAINST ('".$k."') > 0.5
Only one problem: the AGAINST part ($k for you) must be greater than 3 characters.
So I have following as part of my query
SELECT * FROM $table WHERE columname LIKE '%$searchterm%'
I have tried taking out leading and/or ending wildcards meaning
SELECT * FROM $table WHERE columname LIKE '$searchterm%'
AND
SELECT * FROM $table WHERE columname LIKE '%$searchterm'
AND
SELECT * FROM $table WHERE columname LIKE '%$searchterm%' OR columname LIKE '$searchterm'
and also tried adding following to the query with no luck
OR columname = '$searchterm'
So when my search term is "myval" and if column has whole string "myval", I would like to have that selected. But ALL of my queries above, return false/return nothing where myval is searchterm and column value as full.
I can not use MATCH because this is not Full-Text index.
EDIT:
PHP Code:
$sterm = NULL;
$table = 'mytable';
if(isset($_GET['s'])) { $sterm = explode(" ", mysql_real_escape_string($_GET['s'])); }
if(isset($_POST['s'])) { $sterm = explode(" ", mysql_real_escape_string($_POST['s'])); }
if(!empty($sterm)){
$getdata = "SELECT * FROM $table WHERE termsi != 'Special' ";
foreach ($sterm as $value){
$getdata .= "AND netid_all LIKE '%$value%' OR netid_all = '$value' ";
} //End foreach
$getdata .= "LIMIT 10";
$result = mysql_query($getdata) or die(mysql_error());
$row = mysql_fetch_array($result, MYSQL_ASSOC);
while($row = mysql_fetch_array($result, MYSQL_ASSOC))
{
echo <<<PRINTALL
{$row[0]}, {$row[1]}, {$row[2]}, {$row[3]}, {$row[4]}, {$row[5]}, {$row[6]}, {$row[7]}, ' <br />'
PRINTALL;
} //End While
} //End If search exists
Okay So As you guys suggested, i tried PHPMyAdmin sql console and it works fine, so it would have to be by PHP!? so here it is.
I'd suggest writing your query building like this:
$fullvalues = array();
$partials = array();
foreach ($sterm as $value){
$partials[] = "(netid_all LIKE '%" . mysql_real_escape_string($value) . "%')";
$fullvalues[] = "'" . mysql_real_escape_string($value) . "'";
}
$partials = implode(' OR ', $partials);
$fullvalues = implode(', ', $fullvalues);
$sql = <<<EOL
SELECT *
FROM $table
WHERE (termsi != 'Special')
AND (($partials) OR (netid_all IN ($fullvalues));
EOL;
Assuming your search string is a b c, you'd get this query:
SELECT *
FROM yourtable
WHERE (termsi != 'Special')
AND (((netid_all LIKE '%a%') OR (netid_all LIKE '%b%') OR (netid_all LIKE '%C%')) OR (netid_all IN ('a', 'b', 'c')))
If your search requires that all terms be present, then change the 'OR' to 'AND' in the implode.
Well found it,
$row = mysql_fetch_array($result, MYSQL_ASSOC);
while($row = mysql_fetch_array($result, MYSQL_ASSOC))
Was the problem, earlier when I was testing things, anyhow, it should have been the following
$row = mysql_fetch_array($result, MYSQL_ASSOC);
while($row)