Question:
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mysql_fetch_array() expects parameter 1 to be resource, boolean given in select
I was wondering how can correct the error I keep0 getting listed below.
I get the following error.
Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given on line 159 Line 159 is
$foundnum = mysqli_num_rows($run); Here is part of the PHP & MySQL code.
mysqli_select_db($mysqli, "sitename"); $search_explode = explode(" ", $search); foreach($search_explode as $search_each) { $x++; if($x == 1){ $construct .= "(users_comments.article_content LIKE '%$search_each%' OR users_comments.title LIKE '%$search_each%' OR users_comments.summary LIKE '%$search_each%')"; } else { $construct .= "(OR users_comments.article_content LIKE '%$search_each%' OR users_comments.title LIKE '%$search_each%' OR users_comments.summary LIKE '%$search_each%')"; } } $construct = "SELECT users.*, users_comments.* FROM users INNER JOIN users_comments ON users.user_id = users_comments.user_id WHERE $construct ORDER BY users_comments.date_created DESC"; $run = mysqli_query($mysqli, $construct); $foundnum = mysqli_num_rows($run); if ($foundnum == 0) { echo 'No results found.'; }
Solution:1
You have to test $run to make sure mysqli_query() didnt return false.
if ($run != false) { $foundnum = mysqli_num_rows($run); if ($foundnum == 0) { echo 'No results found.'; } }
Solution:2
It's because
if ( $result = mysqli_query($mysqli, $construct) ) { // got something! } returned FALSE. You have to test for the return value before using it as a result set. You must have an error in your SQL statement.
Small advice: To avoid repeating the complex SQL string in your loop, use a $prefix variable, like so:
$prefix = ''; foreach($search_explode as $search_each) { $construct .= "$prefix (users_comments.article_content LIKE '%$search_each%' OR users_comments.title LIKE '%$search_each%' OR users_comments.summary LIKE '%$search_each%') "; $prefix = ' OR' ; } I suspect the error is arount there anyway, you put your 'OR' inside the parenthesis instead of outside.
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