显示搜索结果时无法删除“ARRAY”一词[关闭]

Question

How would I remove the word 'ARRAY' from my search results. Here is the function that is performing the search. Also, I am pulling the data from a mysql db. Everything works great except the word 'ARRAY' printing on top of the results.

<?php

$sql_statement = "SELECT title, type, pubdate, isbn ";
$sql_statement .= "FROM booklib ";

if($keyword != 'ALL') {
    $sql_statement .= "WHERE title LIKE '%$keyword%' ";
}

$sql_statement .= "ORDER BY title, type, pubdate, isbn ";

$result = mysql_query($sql_statement);

$outputDisplay = "";
$myrowcount = 0;

if(!$result) {

    selectResults($statement, $db);
} else {
    if($keyword == 'ALL') {
        $outputDisplay = "<h1>Current Titles: </h1>";
    } else {
        $outputDisplay = "<h1>Current Titles that match: '$keyword'</h1>";
    }

    $outputDisplay .= list($title, $type, $pubdate, $isbn) = explode('*', $line);

    $numresults = mysql_num_rows($result);

    for($i = 0; $i < $numresults; $i++) {

        $myrowcount++;

        $row = mysql_fetch_array($result);


        $title = $row['title'];
        $category = $row['type'];
        $pub_date = $row['pubdate'];
        $isbn = $row['isbn'];

        $outputDisplay .= "<br>$myrowcount.$title";
        $outputDisplay .= "<br>Category: $category";
        $outputDisplay .= "<br>Publication Date: $pub_date";
        $outputDisplay .= "<br>ISBN: $isbn</br>";
    }

    print $outputDisplay;
    getServer();
}

Answer 1

It is this line that does it:

$outputDisplay .= list($title, $type, $pubdate, $isbn) = explode('*', $line);

Assignment operations return the value that is being assigned. explode returns an array that is assigned to the variables in list. Basically, apart from the side effect of assigning variables in list, it's as if your code was doing this:

$outputDisplay .= explode('*', $line);

If you try using an array as a string, PHP casts the array to a string that has the value "array". In addition, a notice is generated but it is probably not shown because your error_reporting setting doesn't allow output of E_NOTICE errors.