Checking for multiple words in a string

[NSA]

Hello,

I am trying to check a string for any words at which point if there is a word found, I want PHP to run a MySQL query. Below is a pseudo example of what I want to happen.

$words = ("word","word1","word2");
$string = "hello word";

if($string contains any $words)
{
echo "True";
}else
{
echo "No word";
}

It would be a huge help if someone has a solution.
Cheers.

 

[Quackster]

$words = array();
$words[] = "word1";
$words[] = "word2";
 
if (in_array("word1", $words))
{
    echo "amgg";
}
else
{
  echo "no sorry";
}

try that, not sure my php isn't great xD

 

[NSA]

Unfortunately that just checks one word. For instance I want it where a string can be "Hello how are you?" and PHP will find for instance "are".

 

[IntactDev]

You would have to use a while() function to repeat it every time it isnt found... and if it's found, then you can echo "The string has been found!"..

I would do it now, but I'm redesigning my website (

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)

 

[NSA]

It would've saved you a lot more time if you'd have just told me how to split the string into words

 

[IntactDev]

It would've saved you a lot more time if you'd have just told me how to split the string into words

explode($string, ' ');

 

[Markshall]

Something like this should do the job just find.

<?php
$sentence = "Hello how are you?";
$find    = "are";
 
if (preg_match("/{$find}/i", $sentence)) {
echo "\"{$find}\" has been found!";
}else{
echo "\"{$find}\" has not been found.";
}
?>

The 'i' in the first preg_match parameter means that the word is case-insensitive, so if 'ArE' was in $sentence, it would return true. Remove the 'i' to make the search case-sensitive.

 

[RastaLulz]

Here's a function I coded a few weeks back which will give you the result you want.

    function substring_in_array($String, $SubStrings) {
 
        foreach ($SubStrings as $SubString) {
 
            if(strstr(strtolower($String), strtolower($SubString))) {
 
                return true;
 
            }
 
        }
 
        return false;
 
    }

This is how you'd use that function:

<?php
 
$string = 'I went to the store.';
 
$words  = Array('shop', 'store', 'market');
 
if(substring_in_array($string, $words)) {
 
  echo 'One of those words were in the string.';
 
}else{
 
  echo 'None of those words were in the string.';
 
}

 

[NSA]

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Thanks for these, I managed to get it working!

 

[IntactDev]

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I'm interested in your method of getting this done... how would you extend it's functionality to find how many results were found?

 

[Weasel]

Use a count function