checking LARGE ARRAY for value

[The Letter E]

Hey everybody,

 

I have a script that I think should be working, but it's not...go figure

 

Here's the snippet that is causing and epic fail:

<?php

foreach($Array as $key => $value){
        $$value = $key;
       }

$checkVal = 'someValue';
$output = isset($$checkVal) ? TRUE : FALSE;

?>

 

As you can see it basically sets the value of the array element to a var var and then checks agains an input word. If the input word matched the varName of a set variable, we can then assume that word was in the array and return TRUE.

 

Pretty straight forward and I've tried about 3 different approaches to this, including:

in_array and flipping and checking for isset(array['value']).

 

The array that is being checked against is usually upwards of 15000 elements.

 

I would appreciate any knowledge that helps understand any issues in searching large arrays and good ways to get around them, or if it's just an error in my coding/logic, let me know!

 

Thank You all in advance.

 

E

[Pikachu2000]

Are you just trying to determine if a particular value exists somewhere in the array?

[AbraCadaver]

I don't see why in_array() doesn't work:

 

$array = range(1, 15000);
$array[] = 'someValue';

$checkVal = 'someValue';

if(in_array($checkVal, $array)) {
    echo "FOUND";
} else {
    echo "NOT FOUND";
}

[Pikachu2000]

That's exactly what I was thinking, Abra.

[The Letter E]

I don't see why in_array() doesn't work:

 

$array = range(1, 15000);
$array[] = 'someValue';

$checkVal = 'someValue';

if(in_array($checkVal, $array)) {
    echo "FOUND";
} else {
    echo "NOT FOUND";
}

 

ok, apparently it's a problem with the ternary operator i wrote. Is it written incorrectly?? looks right to me.

 

Ternary(doesn't work):

<?php
$this->output = in_array($this->word, $engArray) ? '1' : '0';
?>

 

Standard IF, ELSE(works):

<?php
if(in_array($this->word, $engArray)){
			$this->output = '0';
		}else{
			$this->output = '1';
		}
?>

 

Any ideas...and No, I'm not completely set on using the ternary operater, but I'd prefer to.

[The Letter E]

I don't see why in_array() doesn't work:

 

$array = range(1, 15000);
$array[] = 'someValue';

$checkVal = 'someValue';

if(in_array($checkVal, $array)) {
    echo "FOUND";
} else {
    echo "NOT FOUND";
}

 

ok, apparently it's a problem with the ternary operator i wrote. Is it written incorrectly?? looks right to me.

 

Ternary(doesn't work):

<?php
$this->output = in_array($this->word, $engArray) ? '1' : '0';
?>

 

Standard IF, ELSE(works):

<?php
if(in_array($this->word, $engArray)){
			$this->output = '0';
		}else{
			$this->output = '1';
		}
?>

 

Any ideas...and No, I'm not completely set on using the ternary operater, but I'd prefer to.

 

Actually, I accidentally flipped the values. Neither of those is working.

[PFMaBiSmAd]

It would help if you posted an example showing what the part of your array looks like that should be matched and what your $this->word looks like, and have you actually echoed or used var_dump() on the values so that you know that they actually do match (in_array requires an exact match.)

[The Letter E]

It would help if you posted an example showing what the part of your array looks like that should be matched and what your $this->word looks like, and have you actually echoed or used var_dump() on the values so that you know that they actually do match (in_array requires an exact match.)

 

Array sample:

...

    [7299] => cheatrie

    [7300] => cheats

    [7301] => chebacco

    [7302] => chebec

    [7303] => chebel

    [7304] => chebog

    [7305] => chebule

    [7306] => chebulinic

    [7307] => chebyshev

    [7308] => chechehet

    [7309] => chechen

    [7310] => check

    [7311] => checkable

    [7312] => checkage

    [7313] => checkbird

    [7314] => checkbite

    [7315] => checkbook

    [7316] => checkbooks

    [7317] => checked

...

 

$this->word will be a user input string i.e. 'check' . It can be anything, but assuming it matches an array value the script should catch that. No var_dump() is currently in place.

[AbraCadaver]

It's got to be a problem with your data.  You need to var_dump() or echo them in the function where you are trying to use them:

 

$word = 'hi';
$engArray = array('hi', 'bye');
$output = in_array($word, $engArray) ? '1' : '0';
var_dump($output);
// string(1) "1"

$word = 'cya';
$engArray = array('hi', 'bye');
$output = in_array($word, $engArray) ? '1' : '0';
var_dump($output);
// string(1) "0"

[The Letter E]

It's got to be a problem with your data.  You need to var_dump() or echo them in the function where you are trying to use them:

 

$word = 'hi';
$engArray = array('hi', 'bye');
$output = in_array($word, $engArray) ? '1' : '0';
var_dump($output);
// string(1) "1"

$word = 'cya';
$engArray = array('hi', 'bye');
$output = in_array($word, $engArray) ? '1' : '0';
var_dump($output);
// string(1) "0"

 

Word, it's the data. I just ran a var_dump() on one of the array values and they all have an extra blank space at the end. I feel like a dumb, haha

 

I'm just gonna toss an rtrim on there for now.

 

Thanks for the help everybody : )