CODEWITHSUNDEEP
phparrayscakephp
s4suryapal
s4suryapal

Reputation: 1958

How to check not in array element

I am trying to check if an element is not in array than want to redirect page: My code is as below:

$id = $access_data['Privilege']['id']; 

if(!in_array($id,$user_access_arr))
{
    $this->Session->setFlash(__('Access Denied! You are not eligible to access this.'), 'flash_custom_success');
    return $this->redirect(array('controller'=>'Dashboard','action'=>'index'));
}

I am confused how to check if element is not in array. As we can check element exist or not in array using in_array function of PHP. I am trying to check it using (!in_array) but I did not got result.

Upvotes: 81

Views: 286609

Answers (9)

Request Data
Request Data

Reputation: 1

$data = array(
0 => 'Key1',
1 => 'Key2'
);

$key = array_search('Key2', $data);

if ($key) {
 echo 'Key is ' . $key;
} else {
 echo 'Key not found';
}

Upvotes: 0

Umesh Pimpale
Umesh Pimpale

Reputation: 71

$id = $access_data['Privilege']['id']; 

if(!in_array($id,$user_access_arr));
    $user_access_arr[] = $id;
    $this->Session->setFlash(__('Access Denied! You are not eligible to access this.'), 'flash_custom_success');
    return $this->redirect(array('controller'=>'Dashboard','action'=>'index'));

Upvotes: 7

Tomas Kaidl
Tomas Kaidl

Reputation: 241

I prefer this

if(in_array($id,$user_access_arr) == false)

respective

if (in_array(search_value, array) == false) 
// value is not in array

Upvotes: 24

Shafiqul Islam
Shafiqul Islam

Reputation: 5690

you can check using php in_array() built in function

<?php
  $os = array("Mac", "NT", "Irix", "Linux");
  if (in_array("Irix", $os)) {
    echo "Got Irix";
 }
 if (in_array("mac", $os)) {
  echo "Got mac";
}
?>

and you can also check using this

<?php
  $search_array = array('first' => 1, 'second' => 4);
  if (array_key_exists('first', $search_array)) {
    echo "The 'first' element is in the array";
   }
   ?>

in_array() is fine if you're only checking but if you need to check that a value exists and return the associated key, array_search is a better option.

$data = array(
0 => 'Key1',
1 => 'Key2'
);

$key = array_search('Key2', $data);

if ($key) {
 echo 'Key is ' . $key;
} else {
 echo 'Key not found';
}

for more details http://php.net/manual/en/function.in-array.php

Upvotes: 3

Elyor
Elyor

Reputation: 5532

Simply

$os = array("Mac", "NT", "Irix", "Linux");
if (!in_array("BB", $os)) {
    echo "BB is not found";
}

Upvotes: 110

Shruti
Shruti

Reputation: 71

if (in_array($id,$user_access_arr)==0)
{
    $this->Session->setFlash(__('Access Denied! You are not eligible to access this.'), 'flash_custom_success');
    return $this->redirect(array('controller'=>'Dashboard','action'=>'index'));
}

Upvotes: 7

aish
aish

Reputation: 623

$array1 = "Orange";
$array2 = array("Apple","Grapes","Orange","Pineapple");
if(in_array($array1,$array2)){
    echo $array1.' exists in array2';
}else{
    echo $array1.'does not exists in array2';
}

Upvotes: 3

ackuser
ackuser

Reputation: 5899

I think everything that you need is array_key_exists:

if (!array_key_exists('id', $access_data['Privilege'])) {
                $this->Session->setFlash(__('Access Denied! You are not eligible to access this.'), 'flash_custom_success');
                return $this->redirect(array('controller' => 'Dashboard', 'action' => 'index'));
            }

Upvotes: 3

Ajanth
Ajanth

Reputation: 96

Try with array_intersect method

$id = $access_data['Privilege']['id']; 

if(count(array_intersect($id,$user_access_arr)) == 0){

$this->Session->setFlash(__('Access Denied! You are not eligible to access this.'), 'flash_custom_success');
return $this->redirect(array('controller'=>'Dashboard','action'=>'index'));
}

Upvotes: 5

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