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+--- Thread: Invalid argument supplied for foreach() when using parser (/showthread.php?tid=75295)
Invalid argument supplied for foreach() when using parser - SkyRipper - 01-23-2020
hello all, Im just moving from CI3 to CI4 , im still playing around with it and;
here some code example
in my controller auth.php
PHP Code:
<?php
namespace App\Controllers;
class Auth extends BaseController
{
public function index($ext = null)
{
$data = [
'submit_url' => base_url('auth/submit'),
'error' => $ext['error'],
'csrf_token' => csrf_token(),
'csrf_hash' => csrf_hash()
];
echo view('inc/header');
echo $this->parser->setData($data)->render('auth');
echo view('inc/footer');
}
public function submit()
{
$this->validation->setRules([
'email' => 'required|valid_email',
'password' => 'required',
]);
$valid = $this->validation->withRequest($this->request)->run();
if ($valid === false) {
$ext = [
'error' => $this->validation->getErrors(),
];
return $this->index($ext);
}
$email = $this->request->getPost('email');
return $email;
}
}
in my view auth.php
PHP Code:
{error}
{email}
{password}
{/error}
<form class="ui form" method="post" action="{submit_url}">
<div class="field">
<label>Email</label>
<input type="text" name="email" placeholder="Email">
</div>
<div class="field">
<label>Password</label>
<input type="password" name="password" placeholder="Password">
</div>
<input type="hidden" name="{csrf_token}" value="{csrf_hash}" />
<button class="ui button" type="submit">Submit</button>
</form>
but i get this error after try surfing the page
it is same like i did in CI3 when using parser, hope someone can help me. thank you
RE: Invalid argument supplied for foreach() when using parser - kilishan - 01-26-2020
What is the value of $ext['error'] ? Any chance it's a string?
RE: Invalid argument supplied for foreach() when using parser - SkyRipper - 01-28-2020
(01-26-2020, 10:31 PM)kilishan Wrote: What is the value of $ext['error'] ? Any chance it's a string?
first of all, thanks for replying
so I did a var_dump var $data
here I get:-
Code:
array(4) {
["submit_url"]=>
string(47) "http://192.168.1.103/test/public/auth/submit"
["error"]=>
array(2) {
["email"]=>
string(28) "The email field is required."
["password"]=>
string(31) "The password field is required."
}
["csrf_token"]=>
string(12) "csrf_test"
["csrf_hash"]=>
string(32) "154e1de7b3679b11720940ce8e6cc2ae"
}RE: Invalid argument supplied for foreach() when using parser - MikiStoni - 02-19-2020
hello.
is there already a solution here? i have the same problem. in the ci4 documentation the example does not work either.
greeting, mike
https://codeigniter4.github.io/userguide/outgoing/view_parser.html?highlight=parse
the following example from the documentation sends folgwenden error: CRITICAL - 2020-02-19 14:50:57 --> Invalid argument supplied for foreach()
$template = '{name} lives in {location}{city} on {planet}{/location}.';
$data = [
'name' => 'George',
'location' => [ 'city' => 'Red City', 'planet' => 'Mars' ]
];
echo $parser->setData($data)->renderString($template);
// Result: George lives in Red City on Mars.
RE: Invalid argument supplied for foreach() when using parser - SkyRipper - 02-23-2020
no solution yet, currently I'm using this way to solve my problem
PHP Code:
<?php
namespace App\Controllers;
class Auth extends BaseController
{
public function index()
{
$data = [
'submit_url' => base_url('auth/submit'),
'csrf_token' => csrf_token(),
'csrf_hash' => csrf_hash(),
'responses' => $this->session->getFlashdata()
];
echo $this->parser->setData($this->header)->render('inc/header');
echo $this->parser->setData($data)->render('auth');
echo $this->parser->setData($this->footer)->render('inc/footer');
}
public function submit()
{
$this->validation->setRules([
'email' => 'required|valid_email',
'password' => 'required',
]);
$valid = $this->validation->withRequest($this->request)->run();
if ($valid === false) {
$ext = [
'email' => $this->validation->getError('email'),
'password' => $this->validation->getError('password'),
'message' => ''
];
return redirect()->back()->with('error', $ext);
}
$email = $this->request->getPost('email');
return $email;
}
}
but this way not really nice since I need to declare each error to their own var rather than using array.
RE: Invalid argument supplied for foreach() when using parser - zahhar - 02-24-2020
(02-19-2020, 02:34 PM)MikiStoni Wrote: the following example from the documentation sends folgwenden error: CRITICAL - 2020-02-19 14:50:57 --> Invalid argument supplied for foreach()
$template = '{name} lives in {location}{city} on {planet}{/location}.';
$data = [
'name' => 'George',
'location' => [ 'city' => 'Red City', 'planet' => 'Mars' ]
];
echo $parser->setData($data)->renderString($template);
// Result: George lives in Red City on Mars.
Dear MikiStoni,
There is a typo in the documentation. Location should be enclosed in additional square brackets to form an array, e.g.
PHP Code:
$data = [
'name' => 'George',
'location' => [['city' => 'Red City', 'planet' => 'Mars']]
];
This comes because Parser expects attribute to be either a string (like George), or an Array-of-Arrays (e.g. $location[0] = ['city' => 'Red City', 'planet' => 'Mars']) in order to be able to iterate over it, and then process each pair inside the outer array as normal key:value pair like it was processing 'name'=>'George' pair before.
Probably topicstarter should do the same with errors array, and enclose it into additional array.
RE: Invalid argument supplied for foreach() when using parser - MikiStoni - 03-11-2020
Thx Zahhar
that's exactly right. thank you very much. who is writing the documentation? this urgently needs to be corrected!
RE: Invalid argument supplied for foreach() when using parser - germanosk - 02-07-2021
(02-24-2020, 02:42 PM)zahhar Wrote:(02-19-2020, 02:34 PM)MikiStoni Wrote: the following example from the documentation sends folgwenden error: CRITICAL - 2020-02-19 14:50:57 --> Invalid argument supplied for foreach()
$template = '{name} lives in {location}{city} on {planet}{/location}.';
$data = [
'name' => 'George',
'location' => [ 'city' => 'Red City', 'planet' => 'Mars' ]
];
echo $parser->setData($data)->renderString($template);
// Result: George lives in Red City on Mars.
Dear MikiStoni,
There is a typo in the documentation. Location should be enclosed in additional square brackets to form an array, e.g.
PHP Code:$data = [
'name' => 'George',
'location' => [['city' => 'Red City', 'planet' => 'Mars']]
];
This comes because Parser expects attribute to be either a string (like George), or an Array-of-Arrays (e.g. $location[0] = ['city' => 'Red City', 'planet' => 'Mars']) in order to be able to iterate over it, and then process each pair inside the outer array as normal key:value pair like it was processing 'name'=>'George' pair before.
Probably topicstarter should do the same with errors array, and enclose it into additional array.
Just created a user for this forum to say THANK YOU!
And to point out that doc still wrong 
RE: Invalid argument supplied for foreach() when using parser - JohnyR - 02-16-2021
(02-23-2020, 07:49 PM)SkyRipper Wrote: no solution yet, currently I'm using this way to solve my problem
PHP Code:<?php
namespace App\Controllers;
class Auth extends BaseController
{
public function index()
{
$data = [
'submit_url' => base_url('auth/submit'),
'csrf_token' => csrf_token(),
'csrf_hash' => csrf_hash(),
'responses' => $this->session->getFlashdata()
];
echo $this->parser->setData($this->header)->render('inc/header');
echo $this->parser->setData($data)->render('auth');
echo $this->parser->setData($this->footer)->render('inc/footer');
}
public function submit()
{
$this->validation->setRules([
'email' => 'required|valid_email',
'password' => 'required',
]);
$valid = $this->validation->withRequest($this->request)->run();
if ($valid === false) {
$ext = [
'email' => $this->validation->getError('email'),
'password' => $this->validation->getError('password'),
'message' => ''
];
return redirect()->back()->with('error', $ext);
}
$email = $this->request->getPost('email');
return $email;
}
}
but this way not really nice since I need to declare each error to their own var rather than using array.
Tell me, have you found an alternative solution? this option is not suitable for me ..