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+--- Thread: Invalid argument supplied for foreach() Filename: views/navigation.php (/showthread.php?tid=27086)
Invalid argument supplied for foreach() Filename: views/navigation.php - El Forum - 02-01-2010
[eluser]mehdy[/eluser]
my getSubCategories function in mcats
function getCategoriesNav(){
$data = array();
$this->db->select('id,name,parentid');
$this->db->where('status', 'active');
$this->db->orderby('parentid','asc');
$this->db->orderby('name','asc');
$this->db->groupby('parentid,id');
$Q = $this->db->get('categories');
if ($Q->num_rows() > 0){
foreach ($Q->result() as $row){
if ($row->parentid > 0){
$data[0][$row->parentid]['children'][$row->id] = $row->name;
}else{
$data[0][$row->id]['name'] = $row->name;
}
}
}
$Q->free_result();
return $data;
}
my view/navigation
if (count($navlist)){
echo "<ul>";
foreach ($navlist as $key => $list){
foreach ($list as $topkey => $toplist){
echo "<li class='cat'>";
echo anchor("welcome/cat/$topkey",$toplist['name']);
echo "</li>\n";
if (count($toplist['children'])){
foreach ($toplist['children'] as $subkey => $subname){
echo "\n<li class='subcat'>";
echo anchor("welcome/cat/$subkey",$subname);
echo "</li>";
}
}
}
}
echo "</ul>\n";
}
my welcome/cat
function cat($id){
//$this->benchmark->mark('query_start');
$cat = $this->MCats->getCategory($id);
//$this->benchmark->mark('query_end');
if (!count($cat)){
redirect('welcome/index','refresh');
}
$data['title'] = "Claudia's Kids | ". $cat['name'];
if ($cat['parentid'] < 1){
//show other categories
$data['listing'] = $this->MCats->getSubCategories($id);
$data['level'] = 1;
}else{
//show products
$data['listing'] = $this->MProducts->getProductsByCategory($id);
$data['level'] = 2;
}
$data['category'] = $cat;
$data['main'] = 'category';
$data['navlist'] = $this->MCats->getCategoriesNav();
$this->load->vars($data);
$this->load->view('template');
}
when i load home page , its shows the following errors .
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
# s
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
# S
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
#
A PHP Error was encountered
Severity: Notice
Message: Uninitialized string offset: 0
Filename: views/navigation.php
Line Number: 7
http://localhost/codeigniter2/index....e/cat/longdesc
A PHP Error was encountered
Severity: Notice
Message: Uninitialized string offset: 0
Filename: views/navigation.php
Line Number: 9
A PHP Error was encountered
Severity: Notice
Message: Uninitialized string offset: 0
Filename: views/navigation.php
Line Number: 10
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
# a
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
# 7
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
# 0
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
# 2
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
# s
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
# S
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
#
A PHP Error was encountered
Severity: Notice
Message: Uninitialized string offset: 0
Filename: views/navigation.php
Line Number: 7
http://localhost/codeigniter2/index....e/cat/longdesc
A PHP Error was encountered
Severity: Notice
Message: Uninitialized string offset: 0
Filename: views/navigation.php
Line Number: 9
A PHP Error was encountered
Severity: Notice
Message: Uninitialized string offset: 0
Filename: views/navigation.php
Line Number: 10
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
# a
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
# 7
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
# 0
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
# 3
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
# p
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
# S
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Line Number: 10
#
A PHP Error was encountered
Severity: Notice
Message: Uninitialized string offset: 0
Filename: views/navigation.php
Line Number: 7
http://localhost/codeigniter2/index....e/cat/longdesc
A PHP Error was encountered
Severity: Notice
Message: Uninitialized string offset: 0
Filename: views/navigation.php
Line Number: 9
A PHP Error was encountered
Severity: Notice
Message: Uninitialized string offset: 0
Filename: views/navigation.php
Line Number: 10
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/navigation.php
Invalid argument supplied for foreach() Filename: views/navigation.php - El Forum - 02-01-2010
[eluser]danmontgomery[/eluser]
I'm just guessing that in
Code:
foreach ($list as $topkey => $toplist){$list is not an array. Since the error very clearly states that it's on line 10, maybe you'd consider telling us what line 10 is?
Invalid argument supplied for foreach() Filename: views/navigation.php - El Forum - 02-01-2010
[eluser]mehdy[/eluser]
thank you for your reply . my line 10 is
Code:
foreach ($toplist['children'] as $subkey => $subname){Invalid argument supplied for foreach() Filename: views/navigation.php - El Forum - 02-01-2010
[eluser]danmontgomery[/eluser]
This is faulty logic:
Code:
if(count($var))Since almost anything will return 1 or more. You should use is_array() in combination with count() or empty()
Invalid argument supplied for foreach() Filename: views/navigation.php - El Forum - 02-01-2010
[eluser]mehdy[/eluser]
thank you very much , im trying ,still get the same error . will you kindly post me the , code in description . thank u once again ,
Invalid argument supplied for foreach() Filename: views/navigation.php - El Forum - 02-01-2010
[eluser]danmontgomery[/eluser]
Code:
if(is_array($toplist['children']) && count($toplist['children'])) {
foreach($toplist['children'] as $subkey => $subname) {
...Invalid argument supplied for foreach() Filename: views/navigation.php - El Forum - 02-01-2010
[eluser]mehdy[/eluser]
thank you , now i have the following error
# 1
# s
# S
#
A PHP Error was encountered
Severity: Notice
Message: Uninitialized string offset: 0
Filename: views/navigation.php
Line Number: 7
http://localhost/codeigniter2/index.php/welcome/cat/longdesc
A PHP Error was encountered
Severity: Notice
Message: Uninitialized string offset: 0
Filename: views/navigation.php
Line Number: 9
# a
# 7
# 2
# s
# S
#
A PHP Error was encountered
Severity: Notice
Message: Uninitialized string offset: 0
Filename: views/navigation.php
Line Number: 7
http://localhost/codeigniter2/index.php/welcome/cat/longdesc
A PHP Error was encountered
Severity: Notice
Message: Uninitialized string offset: 0
Filename: views/navigation.php
Line Number: 9
Invalid argument supplied for foreach() Filename: views/navigation.php - El Forum - 02-01-2010
[eluser]mehdy[/eluser]
i think my model is not working properly, please help me understand this line in function getCategoriesNav
$data[0][$row->parentid]['children'][$row->id] = $row->name ,, what dose this line means and where the children come from ????