How to display error messages via function php - php

Question

The goal is to have the results of a foreach loop display an array's content in the form page. I'm have been able to display error messages, but not more than one when several exist. Currently the code returns collection array with many lines but my purpose is to generate line by line via respective condition.
index.php
<tbody>
<?php
include './function/check.php';
foreach ($urls as $url) {
?>
<tr>
<td> <?php print_r($url[2]); ?></td>
<td><?php print_r($url[1]); ?></td>
<td>
<?php
var_dump($output);
?>
</td>
</tr>
<?php
}
}
?>
</tbody>
check.php
<?php
include 'checkfunction.php';
if (isset($_POST['sourceDir'])) {
$sourceDir = $_POST['sourceDir'];
$urls = array();
$linecount = 1;
$output = array();
$errmsg = '';
if (is_dir($sourceDir)) {
if ($dh = opendir($sourceDir)) {
while (false !== ($filename = readdir($dh))) {
if ($filename != "." && $filename != ".." && strtolower(substr($filename, strrpos($filename, '.') + 1)) == 'php') {
$absolute_path = str_replace('\\', '/', $sourceDir) . '/';
$readfile = fopen($absolute_path . $filename, 'r');
if ($readfile) {
while (FALSE !== ($line = fgets($readfile))) {
$ary = check($line, $linecount, $filename);
if ($ary != null) {
array_push($urls, $ary);
$errmsg = array($errmsg);
$out1 = '';
foreach ($errmsg as $k => $v) {
$out1 = $v;
$output[] = $out1;
}
var_dump($output);
}
$linecount++;
}
fclose($readfile);
}
$linecount = 1;
}
}
closedir($dh);
}
}
}
?>
checkfunction.php
<?php
function check($line, $linecount, $filename) {
global $errmsg;
$urls = array($line, $linecount, $filename);
if (preg_match("/\=/", $line)) {
if (preg_match("/\\s\=\\s/i", $line) || preg_match("/\\s\==\\s/", $line) || preg_match("/\\s\===\\s/", $line)) {
} else {
$errmsg = "There should be space before and after of equal";
return $urls;
}
} elseif (strpos($line, 'if') !== false) {
if (preg_match("/\!\\\$[a-zA-z0-9]/i", $line)) {
$errmsg = "•If you want to use ifcondition, don't use !.Use false === ";
return $urls;
}
}
}

Answer 1

Just add ini_set('display_errors',1); after the opening in the first page.
It's the equivalent to enabling error_reporting in php.ini
//I hope thats, what you're looking for..

Answer 2

to do that you need to use a foreach loop, try this :
$errors = array(); //consider this is the array where ur storing all the errors, im doing this to make it more logical
//for each item in the array store it in a new variable named $error, and then we echo it :
foreach($errors as $error){
//you can also style all the errors, or make them a part of a <ul> like this
echo '<ul>
<li>'.$error.'</li>
</ul>';
}
this should display all the error messages you have