Sorry , Stupid questions. How to limit the numbers of variable value ?

adam9110

I am totally new to PHP .

Now . I have Defined a Variable which have Value1, Value2, Value3, Value 4,..........................,

I dont want all of the value to be shown at the same time.

What PHP cod could limit the variable value to be shown. For example , 5 different Value one time randomly.

Can I use 'Echo ' ANd How ?

Please help me with it.

thanks very much .

Best Regards

bradgrafelman

adam9110 wrote:
I have Defined a Variable which have Value1, Value2, Value3, Value 4,....

How have you done this? Using an array? Can you show us the code for this?

adam9110 wrote:
For example , 5 different Value one time randomly.

I'm not quite sure I understand what you mean... you want to randomly pick 5 values from the possible choices, one at a time? If so, and the variable (let's call it $foo) is an array of possible choices, you could do:

shuffle($foo);
for($i=0; isset($foo[$i]) && $i<=5; $i++) {
    echo 'The value is: ' . $foo[$i] . '<br>';
}

adam9110

Thanks for your rapidly reply .
Really appreciated it .

I will try now .

Kindest Regards

adam9110

Sorry bradgrafelman, Just a little bit Problem.

Warning: shuffle() expects parameter 1 to be array, object given

ANd the Original Code is
echo $cloud->showCloud();

The variable value looks from a Function.

Can the shuffle deal with the function.

I have change the code to this:

shuffle($cloud->showCloud());
for($i=0; isset($cloud[$i]) && $i<=5; $i++) {
echo 'The value is: ' . $cloud[$i] . ' ';
}

It gives me the above error.

Kind Regards

adam9110

The Function is
function showCloud($returnType = "html")
{
$max = 0;
if (is_array($this->gtags))
{
foreach ($this->gtags as $key => $value)
{
if ($value['count'] > $max)
{
$max = $value['count'];
}
}
}
if (is_array($this->gtags))
{
$return = ($returnType == "html" ? "" : ($returnType == "array" ? array() : ""));
foreach ($this->gtags as $key => $value)
{
$sizeRange = $this->getClassFromPercent(($value['count'] / $max) 100);
if ($returnType == "html")
{
$return .= '<a class="category-top" href="' . $value['url'] . '">';
$return .= "   {$value['tag']}   </a>";
}
}
return $return;
}
}
}
?> function showCloud($returnType = "html")
{
$max = 0;
if (is_array($this->gtags))
{
foreach ($this->gtags as $key => $value)
{
if ($value['count'] > $max)
{
$max = $value['count'];
}
}
}
if (is_array($this->gtags))
{
$return = ($returnType == "html" ? "" : ($returnType == "array" ? array() : ""));
foreach ($this->gtags as $key => $value)
{
$sizeRange = $this->getClassFromPercent(($value['count'] / $max) 100);
if ($returnType == "html")
{
$return .= '<a class="category-top" href="' . $value['url'] . '">';
$return .= "   {$value['tag']}   </a>";
}
}
return $return;
}
}
}
?>

halojoy

hi.

You should use return type = 'array'
from the showCloud

Then you can use function: [man]array_rand/man
to pick 1 value from array '$arr'

<?php

// make an array out of cloud items = $arr
$arr = $cloud->showCloud( 'array' );

// get one rand nr from array ( you can pick several, if adding a parameter )
$nr = array_rand( $arr );

// get the string with number $nr, of the array $arr
$onepick = $arr[$nr];

// echo this string
echo $onepick;

?>

bradgrafelman

If you just one want value, then halojoy's code above should work. If you want 5 random values, you need to pass the value 'array' as the returnType parameter (as halojoy did in his snippet above) when using my code snippet.

adam9110

halojoy wrote:
hi.

You should use return type = 'array'
from the showCloud

Then you can use function: [man]array_rand/man
to pick 1 value from array '$arr'
<?php

// make an array out of cloud items = $arr
$arr = $cloud->showCloud( 'array' );

// get one rand nr from array ( you can pick several, if adding a parameter )
$nr = array_rand( $arr );

// get the string with number $nr, of the array $arr
$onepick = $arr[$nr];

// echo this string
echo $onepick;

?>

Hi, Halojoy,

Thanks for your code.
But i have tried it. Unfortunately , I can not get the result what i want.
The web page turns to be blank. No Tags display, even one.

SO they must be some problem. But i can not figure out . sorry! Please advice .
Kind Regards

adam9110

And Halojoy,

Does the function showCloud() need to be passed the value 'array' in the defined section as bradgrafelman suggested above. I just have no idea about PHP code. So How to code that?

Any of your suggestion will be highly appreciated.

Thanks

adam9110

Hi bradgrafelman,

And thanks very much for your suggestion as well. I have make a little bit change like

$foo = array ($cloud->showCloud());

shuffle($foo);
for($i=0; isset($foo[$i]) && $i<=5; $i++) {
echo 'The value is: ' . $foo[$i] . ' ';
}

there is no error display on the page. What's more it get the TAGS shown. But It displays ALL of the Value instead of 5. It seems does not work for me.

Is there any code need to be adjusted , I mean in the function showCloud()!

Thanks .

adam9110

Here is the Function of showcloud

Kindly check it.

adam9110

The Variable value pass from DB.

halojoy

This is the original wordCloud class
I show not all functions.
As you can see, function showCloud() always first calls $this->shuffleCloud();
The default argument for showCloud() is 'html'. So normally you would not use any argument. And the return value will be HTML Code, which you can display.

<?php

  class wordCloud
  {
        var $version = '1.0';
        var $wordsArray = array();

function __construct($words = false)
{
	if ($words !== false && is_array($words))
	{
		foreach ($words as $key => $value)
		{
			$this->addWord($value);
		}
	}
}

function shuffleCloud()
{
	$keys = array_keys($this->wordsArray);

	shuffle($keys);

	if (count($keys) && is_array($keys))
	{
		$tmpArray = $this->wordsArray;
		$this->wordsArray = array();
		foreach ($keys as $key => $value)
			$this->wordsArray[$value] = $tmpArray[$value];
	}
}  	 

// Create the HTML code for each word and apply font size.  	 
function showCloud($returnType = "html")
{
	$this->shuffleCloud();
	$this->max = max($this->wordsArray);
	if (is_array($this->wordsArray))
	{
		$return = ($returnType == "html" ? "" : ($returnType == "array" ? array() : ""));
		foreach ($this->wordsArray as $word => $popularity)
		{
			$sizeRange = $this->getClassFromPercent(($popularity / $this->max) * 100);
			if ($returnType == "array")
			{
				$return[$word]['word'] = $word;
				$return[$word]['sizeRange'] = $sizeRange;
			}
			else if ($returnType == "html")
			{
				$return .= "<span class='word size{$sizeRange}'> &nbsp; {$word} &nbsp; </span>";
			}
		}
		return $return;
	}
}

} // end Class
?>

adam9110

Hi, Helojoy,
Thanks for your fast reply.

If i can not adjust the code to limit the numbers of Tags to be shown.

Can i change this function.

function zen_get_metatags_keywords1($product_id, $language_id) {
global $db;
$product = $db->Execute("select metatags_keywords
from " . TABLE_META_TAGS_PRODUCTS_DESCRIPTION . "
where products_id = '" . (int)$product_id . "'
and language_id = '" . (int)$language_id . "'");

return $product->fields['metatags_keywords'];

}[/COLOR]

I have tried to replace return $product->fields['metatags_keywords']; with

while (!$product_query->EOF)
{
$array_keywords[] = array($product_query->fields['metatags_keywords']);
$product_query->MoveNext();
}

return $array_keywords;

But All Tags stop showing expect the word "Array" !

So hard for me to work it out.

would you give me some tips.

Kind Regards.

halojoy

I see there is some database query in there.
And I am no good with SELECT and WHERE and FROM.

But I post your code with our bbcode tag (see far right button in Post Edit Menu )
'PHP'
the code
'/PHP'
And hopefully some other helper will give you best advice.

<?php

function zen_get_metatags_keywords1($product_id, $language_id) {
global $db;
$product = $db->Execute("select metatags_keywords
from " . TABLE_META_TAGS_PRODUCTS_DESCRIPTION . "
where products_id = '" . (int)$product_id . "'
and language_id = '" . (int)$language_id . "'");

return $product->fields['metatags_keywords'];
}

//I have tried to replace return $product->fields['metatags_keywords']; with

while (!$product_query->EOF)
{
$array_keywords[] = array($product->fields['metatags_keywords']);
$product_query->MoveNext();
}

return $array_keywords;

?>

adam9110

thanks, halojoy !
I am waiting other masters.

Kind Regards,