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Unknown Printed Charector


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Hi all,

In fetching a result from a table (below code), 1 is also printed after the fetched record (fetched record below). There is no 1 in the table, nor have I accidentally included it in my script. What is it and why does it appear?

 

<?php

require 'db/connect.php';
if($result = $db->query("SELECT * FROM user")) {
if ($count = $result->num_rows) {
$rows = $result->fetch_assoc();
echo '<pre>', print_r($rows), '</pre>';
}
}
?>
Array
(
[id] => 1
[first_name] => Bill
[last_name] => John
[bio] => I'm a web developer
[created] => 2016-11-21 12:50:12
)
1
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This is what happens when people don't read the documentation of a function before using it. Read this page: http://php.net/print_r

 

print_r() prints the content of a variable and returns true. So when you echo the return value of print_r() it displays "1" which it the string representation of true.

 

You can remove the echo statement and the code will still work except it won't add "1" to the output.

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