Greg Donald wrote:
>
> > I want to check a string and return the amount of words present
> > in it. These
> > strings could be quite large, some higher than 100,000
> > characters. I realize
> > I could explode the string on the whitespace and count the number
> > of values.
> > However, I'm not sure this would be the most optimized way to do this,
> > especially considering there will be some quite large strings passed. Any
> > ideas on the most efficient to count the number of words in a
> > large string?
>
> $string = "Here is a very long string";
> $array = explode(" ", $string);
> $count = sizeof($array);
> echo $count;
Hello,
Greg, Jason asked for an _optimized_ solution.
Solution:
1. If you're using PHP>=4.02 just take the substr_count() function (see
manual).
2. Otherwise you can take this code:
$count=0;
for($x=0;$x<strlen($string);$x++)
if(substr($string,$x,1)==" ")
$count++;
if($count>0)
$count++;
Robert
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