Add space between characters using php

I know this should be simple to figure out, but it's just not jumping out at me. I need to force a space between every character in a variable (possibly more than one space also).

Here is an example of that the variable will hold: BEJMCNHV702
And I need the result to be: B E J M C N H V 7 0 2

That is a reference id that a computer voice is reading to the sales people by phone. When I tested a call, the voice speaks so fast it's not only practically impossible to understand but there's no way the sales person will catch it to jot down. I want to test adding the spaces to see if I can slow down her speaking some. If the spaces aren't enough - the system will also respond to periods or commas. So if I could just get the right code snippet to add something between characters I can experiment.
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DzynitAsked:
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Tom BeckCommented:
$newStr = String with one space between each character. Adjust as necessary;
$arr1 = str_split("BEJMCNHV702");
$newStr = implode(" ", $arr1);

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aboo_sCommented:
$my_str = "BEJMCNHV702";
$str_arr = str_split($my_str);
//this will turn your string into an array.
$white_sp_str = implode(" ", $str_arr);
this will recreate the desired white spaced string.
DzynitAuthor Commented:
That worked great Tom - thank you.
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