PHP - echo doesn't seem to work right
Question
I have this function that gets a table from another site by finding each row of that table and, providing that row isn't a duplicate, echos it to my site. I want to add my own row to the bottom though so I thought it would be as simple as just echoing
<tr><td>TEXT</td></tr>
as you can see below. But when I load the page, this row isn't added. Anyone know what the cause may be?
Here is the website if that helps.
function getStats(){
$page = file_get_html(getPageURL());
$rows = array();
echo "<table id=statsTable>";
foreach($page->find('html/body/div/div[1]/center/table/tbody/tr[1]/td/table/tbody/tr/td[2]/table/tbody/tr/') as $key=>$element) {
if(!in_array($element, $rows)){
$rows[$key]=$element;
echo $rows[$key-1];
}
}
echo "<tr><td>Viewing old updates will be added soon</td></tr></table>";
}
1 answers
solution1
0 2015-02-06 19:01:36
Main problem was in key offset, when you work with arrays it's better to use keys in this case. So in order to that I've changed the in_array to array_key_exists , because we want to check if key exists, but if you want to work with element you have to know its key.
function getStats(){
$page = file_get_html(getPageURL());
$rows = array();
echo "<table id=statsTable>";
foreach($page->find('html/body/div/div[1]/center/table/tbody/tr[1]/td/table/tbody/tr/td[2]/table/tbody/tr/') as $key => $element) {
if(!array_key_exists($key, $rows)){
$rows[$key] = $element;
/* Echo only when it exists */
if(array_key_exists($key-1, $rows)){
echo $rows[$key-1];
}
}
}
echo "<tr><td>Viewing old updates will be added soon</td></tr></table>";
}
?>
<?php
include "getData.php";
include "simple_html_dom.php";
?>
<!DOCTYPE HTML>
<html>
<head>
<title>KSA Flight Tracker</title>
<link rel="stylesheet" type="text/css" href="KSAStyle.css"/>
</head>
<body>
<div id="page">
<div id="leftPanel">
<p id="missionsHeader">Active Missions</p>
<?php getList(); ?>
</div>
<div id="mainPanel">
<p id="infoHeader">
<?php getTitle(); ?>
</p>
<div id="info">
<center>
<?php
getInfo();
getImage();
getMap();
getStats();
?>
</center>
</div>
</div>
</div>
</body>
</html>
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