Split two strings in equal parts and add a word in between

Question

I want to divide words in string by equal parts and then add something in middle.

$string = "hello i am superman and also batman";
$insert = "word";

so i want the result to be

$result= "hello i am superman word and also batman";

What i tried...but below code is very dirty...any easy method please ?

$word = "word";
$arr = explode(" ",$string);
$count = round(sizeof($arr)/2);
$i=0;
foreach($arr as $ok)
{

if($i == $count)
{
$new.=$ok." ".$word;
}
else
{
$new.= $ok." ";
}
$i++;
}

echo trim($new);

What if the string is `"hello i am superman and I can fly faster than batman can"`? — Funk Forty Niner, Nov 27 '14 at 18:42
result should be "hello i am superman and I word can fly faster than batman can" — Vishnu, Nov 27 '14 at 18:43
This is just example ... i wanna add symbol in between actually.. — Vishnu, Nov 27 '14 at 18:46
Perhaps [How to insert element into array to specific position?](http://stackoverflow.com/questions/3353745/how-to-insert-element-into-array-to-specific-position) will help you out. — h2ooooooo, Nov 27 '14 at 18:54

score 1 · Accepted Answer · answered Nov 27 '14 at 18:56

You can use array_splice. An example below:

$string = "hello i am superman and also batman";
$insert = "word";

$string_array = explode(' ',$string);

array_splice( $string_array, round(count($string_array)/2), 0, array($insert) );

echo implode(' ', $string_array);

Or use it as a function:

function insertString($string, $insert){

    $string_array = explode(' ',$string);

    array_splice( $string_array, round(count($string_array)/2), 0, array($insert) );

    return implode(' ', $string_array);

}

echo insertString('hello i am superman and also batman','word');

Output will be:

hello i am superman word and also batman

score 1 · Answer 2 · edited May 23 '17 at 10:33

This is practically quite simple as long as you can accept a little lenience of splitting the string into "equal parts." In this scenario, I am considering the character count instead of the number of words. Use strpos to determine the position of the first space after the "halfway" point of the string:

$insertPoint = strpos($string, ' ', strlen($string) / 2);

Then inject the word there! (Used this SO answer to achieve this)

$new = substr_replace($string, ' '.$insert, $insertPoint, 0);

Split two strings in equal parts and add a word in between

2 Answers2