[SOLVED] counting keywords from an array

[StirCrazy]

Hi folks,

Wonder if someone can give me a hand

 

If I had a variable like this:-

$contents = "test keyword1 test test keyword1 test test test test test keyword2 test test test test test test keyword3 test test test test test test test keyword3 test test test test keyword1 test test test test test keyword3 test";

and an array like this:-

Array ([0] => test [1] => keyword1 [2] => keyword2 [3] => keyword3)

 

 

How would I find out how many times each word in the array features in $contents ?

 

The preferable return would be an array like this:-

array('test' => 21, 'keyword1' => 3, 'keyword2' => 1, 'keyword3' => 3);

 

Any help would be great

 

Thanks in advance

[GingerRobot]

Use the substr_count() function:

 

<?php
$contents = "test keyword1 test test keyword1 test test test test test keyword2 test test test test test test keyword3 test test test test test test test keyword3 test test test test keyword1 test test test test test keyword3 test";
$array = Array ('test','keyword1','keyword2','keyword3');
$newarray = array();
foreach($array as $value){
	$newarray[$value] = substr_count($contents,$value);
}
print_r($newarray);
?>

 

Produces:

 

Array ( [test] => 31 [keyword1] => 3 [keyword2] => 1 [keyword3] => 3 ) 

[StirCrazy]

Top bloke! cheers mate