Using $this when not in object - HELP!

[takuhii]

I have the following statement in my PHP document (running on a PHP 5 server):
[code]
<?php
function DoEvents($this) {
global $_CONF, $_PAGE, $_TSM , $base;

$jpp = $this->vars->data["jpp"]; <-------------------- this is the line at fault

$cache["departments"] = $this->db->QFetchRowArray("SELECT * FROM {$this->tables[job_departments]}");
$cache["locations"] = $this->db->QFetchRowArray("SELECT * FROM {$this->tables[job_location]}");
$cache["names"] = $this->db->QFetchRowArray("SELECT * FROM {$this->tables[job_names]}");
$cache["categories"] = $this->db->QFetchRowArray("SELECT * FROM {$this->tables[job_categories]}");

//add the categories and the departments to the template
if (is_array($cache["categories"])) {
$_TSM["CATEGORIES"] = $base->html->Table($this->templates["categories"], "Categories" , $cache["categories"]);
} else
$_TSM["CATEGORIES"] = "";

if (is_array($cache["departments"])) {
$_TSM["DEPARTMENTS"] = $base->html->Table($this->templates["departments"], "Departments" , $cache["departments"]);
} else
$_TSM["DEPARTMENTS"] = "";


$_pb_used_vars = array("1" => "departments" , "locations" , "names" , "categories");
$_pb_used_keys = array("1" => "department" , "location" , "name" , "category");

//preprocess for assinging the correct id
foreach ($_pb_used_vars as $k => $v) {
if (is_array($cache[$v])) {
foreach ($cache[$v] as $key => $val) {
$cache["_" . $v][$val[$_pb_used_keys[$k] . "_id" ]] = $val[$_pb_used_keys[$k] . "_title" ];
}

$cache[$v] = $cache["_" . $v];
unset($cache["_" . $v]);
}
}

$_GET["page"] = $_GET["page"] > 0 ? $_GET["page"] : 1;

$time = time();

switch ($_GET["sub"]) {
case "details":
$job = $this->db->QFetchArray("SELECT * FROM {$this->tables[job_list]} WHERE job_id = '{$_GET[id]}' AND job_status=0 AND job_date_start <= '{$time}' and job_date_end >= '{$time}'");

//check if is a valid job
if (is_array($job)) {

//add the extra data
$job["job_category_title"] = $cache["categories"][$job["job_category"]];
$job["job_department_title"] = $cache["departments"][$job["job_department"]];
$job["job_location_title"] = $cache["locations"][$job["job_location"]];
$job["job_name_title"] = $cache["names"][$job["job_title"]];

$job["referer"] = $_SERVER["HTTP_REFERER"] ? $_SERVER["HTTP_REFERER"] : "list.php";
$job["job_salary"] = number_format($job["job_salary"] , 2 );
$job["details_link"] = $job["job_link"] ? $this->templates["details"]->blocks["Link"]->Replace($job) : "";

return $this->templates["details"]->blocks["Main"]->Replace($job);

} else {
//redirect to error.php
header("Location: error.php");
exit;
}
break;

case "department":

//check if is a valid department
if ($cache["departments"][$_GET["id"]]) {

$jobs = $this->db->QFetchRowArray("SELECT * FROM {$this->tables[job_list]} WHERE `job_department` = '{$_GET[id]}' AND job_status=0 AND job_date_start <= '{$time}' and job_date_end >= '{$time}' LIMIT " . ($_GET['page'] -1 )* $jpp . " , {$jpp}");
$count = $this->db->RowCount($this->tables["job_list"] , "WHERE `job_department` = '{$_GET[id]}' AND job_status=0 AND job_date_start <= '{$time}' and job_date_end >= '{$time}'");

} else {
//redirect to error.php
header("Location: error.php");
exit;
}

break;

case "category":

//check if is a valid department
if ($cache["categories"][$_GET["id"]]) {

$jobs = $this->db->QFetchRowArray("SELECT * FROM {$this->tables[job_list]} WHERE `job_category` = '{$_GET[id]}' AND job_status=0 AND job_date_start <= '{$time}' and job_date_end >= '{$time}'LIMIT " . ($_GET['page'] -1 )* $jpp . " , {$jpp}");
$count = $this->db->RowCount($this->tables["job_list"] , "WHERE `job_category` = '{$_GET[id]}' AND job_status=0 AND job_date_start <= '{$time}' and job_date_end >= '{$time}'");

} else {
//redirect to error.php
header("Location: error.php");
exit;
}

break;

case "error":
return $this->templates["error"]->output;
break;

case "search":
if ($_GET["what"]) {
//searching in cache
if (is_array($cache["names"])) {
foreach ($cache["names"] as $key => $val) {
if (stristr($val , $_GET["what"])) {
$found[] = $key;
}
}

}

//ok search for the list of jobs
$jobs = $this->db->QFetchRowArray("SELECT * FROM {$this->tables[job_list]} WHERE (job_status=0 AND job_date_start <= '{$time}' and job_date_end >= '{$time}') AND (`job_description` LIKE '%{$_GET[what]}%' or `job_summary` LIKE '%{$_GET[what]}%' " . (is_array($found) ? " OR `job_title` in (" . implode("," , $found) . ")" : "" ) . " ) LIMIT " . ($_GET['page'] -1 )* $jpp . " , {$jpp}");
$count = $this->db->RowCount($this->tables["job_list"] , "WHERE (job_status=0 AND job_date_start <= '{$time}' and job_date_end >= '{$time}') AND  (`job_description` LIKE '%{$_GET[what]}%' or `job_summary` LIKE '%{$_GET[what]}%' " . (is_array($found) ? " OR `job_title` in (" . implode("," , $found) . ")" : "") . ")");

break;
}

default:
$jobs = $this->db->QFetchRowArray("SELECT * FROM {$this->tables[job_list]} WHERE job_status=0 AND job_date_start <= '{$time}' and job_date_end >= '{$time}' LIMIT " . ($_GET['page'] -1 )* $jpp . " , {$jpp}");
$count = $this->db->RowCount($this->tables["job_list"] , "WHERE job_status=0 AND job_date_start <= '{$time}' and job_date_end >= '{$time}'");
break;
}

$alternance = 1;

if (is_array($jobs)) {
foreach ($jobs as $key => $val) {
//add the extra data
$jobs[$key]["job_category_title"] = $cache["categories"][$val["job_category"]];
$jobs[$key]["job_department_title"] = $cache["departments"][$val["job_department"]];
$jobs[$key]["job_location_title"] = $cache["locations"][$val["job_location"]];
$jobs[$key]["job_name_title"] = $cache["names"][$val["job_title"]];

//also add the alternance template
$jobs[$key]["alternance"] = $this->templates["list"]->blocks["Alternance" . $alternance]->output;

//switch
$alternance = !$alternance;
}
}

//build a table with the results;

//well ok, now show the list with the templates

return $base->html->Table($this->templates["list"],"List",$jobs,true,$count,$jpp,$_GET["page"],$this->templates["paging"],array(
"base" => in_array($_GET["sub"] , array ("department" , "category" , "search")) ? $_GET["sub"] . ".php" : "list.php" ,
"extra" => $_GET["id"] ? "id=" . $_GET["id"] . "&" : "",
"what" => $_GET["what"] ? "what=" . $_GET["what"] . "&" : ""

));

}
?>
[/code]

and when I execute the script I get the message: Fatal error: Using $this when not in object context in C:\Program Files\xampp\htdocs\jobs\pb_events.php on line 5
pb_event.php is where my script lives. Can ANYONE tell me how to fix this, as I have NO IDEA :(

[trq]

Is this function part of a class? Have you passed a valid object to the function?

[takuhii]

The function just sits in a file called pb_events.php. But the PHP file that calls this file, uses the following function:
[code]
function Run() {
global $_TSM;

if (file_exists("pb_events.php")) {
include("pb_events.php");

$_TSM["PB_EVENTS"] = DoEvents(&$this);
}

if (is_object($this->templates["layout"])) {
echo $this->templates["layout"]->Replace($_TSM);
}
}
[/code]

[Zane]

http://us2.php.net/manual/en/reserved.php

Note if your running PHP5, $this is a reserved word
so you can't use it as parameter like this

[takuhii]

Could somebody explain to me how I could correct this?

[trq]

Change $this to $that.

[JasonLewis]

lol. yeh. pretty much use anything other then $this for a parameter.