preg_replace?

[pootsey]

Right guys,

 

basically what I'm trying to do is seperate a string ie

 

$string = "onetwothreefourfive"

 

and then apply two repeating html codes to each, ie one would get blue, two would get red, three would get blue, four would get red and so on.

 

Any idea how to do this?

 

thanks!

[marcus]

I'm not so good at regex, but you could just use str replace

 

<?php
$string = "onetwothreefourfive";

$array = array("one","two","three","four","five");
function color($c,$txt){ return "<font color=\"".$c."\">".$txt."</font>";  }
$repl = array(color('blue','one'),color('red','two'),color('blue','three'),color('red','four'),color('blue','five'));

echo str_replace($array,$repl,$string);
?>

[pootsey]

you my friend are a genius, thanks!

[pootsey]

ah actually, just realised something with it, the colours dont repeat, my one twothreefourfive was a bad example.

 

What I actually meant was for example the string would be a value (a username to be specific) pulled from a database which I want coloured like above.

 

So it could be any amount of characters but i still want it to be coloured like that.

 

Anyway of that happening?

[JasonLewis]

Like this?

 

$color = "red"; //start at red?

while($row = mysql_fetch_array($result)){ //I'm assuming you are getting it from a database...

echo "The color is {$color}.<br />";

$color = $color == "red" ? "blue" : "red";
}

[marcus]

hmm, like just repeating red and blue?

 

<?php
$data = range(1,50);

function color($c,$txt){ return "<font color=\"".$c."\">".$txt."</font>";  }

$x = 0;
foreach($data AS $lemons){
if($x % 2){
	echo color('red',$lemons) . " ";
}else {
	echo color('blue',$lemons) . " ";
}

$x++;
}
?>

 

results: http://i34.tinypic.com/wungvb.jpg

[pootsey]

mgallforever that's exactly what I want, although that appears to only work for numbers?

 

if I change $data = range (1,50) to something like $data = "hello" then it wont work.

[marcus]

No, you could do something like this.

 

<?php
function color($c,$txt){ return "<font color=\"".$c."\">".$txt."</font>";  }

$sql = "SELECT * FROM `users` ORDER BY username ASC";
$res = mysql_query($sql) or die(mysql_error());

$x = 0;
while($row = mysql_fetch_assoc($res)){
if($x % 2){
	echo color('red',$row['username']) . " ";
}else {
	echo color('blue',$row['username']) . " ";
}

$x++;
}
?>