str_word_count()

We can use str_word_count string function to get all details of words present in the string. Here is one example.
$str = "Welcom to plus2net PHP section";
$position = str_word_count($str);
echo $position; // output is 6
Simple counting of words can be done like this, however we can more information on words with optional parameter like this.
0  Number of words used in the string
1 Array of words used inside the string
2 Array of words with their position in the string
Here is one example with integer format = 1 , we will get an array with words as element of the array. Here is the output.
$str = "Welcom to plus2net PHP section";
$position = str_word_count($str,1);
echo print_r($position);
Output of this is here
Array ( [0] => Welcom [1] => to [2] => plus [3] => net [4] => PHP [5] => section ) 1 
Now let us try with format value as 2
$position = str_word_count($str,2);
Output is here
Array ( [0] => Welcom [7] => to [10] => plus [15] => net [19] => PHP [23] => section ) 1 
Related Tutorial
Counting chars
Number of occurrences
Along with the words used the key of the array is numeric position of the word inside the string.
We can specify additional chars which can be considered as a word.
$position = str_word_count($str,1,'2');
Here 2 will be considered as part of the word so now the word plus2net will be treated as single word..


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PHP String Functions

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