I'm trying to add a space before and after any number in a string. For example, if I have JS35BX54NV33, I will get JS 35 BX 54 NV 33
I'm using this:
preg_replace("/(\\d)([a-z])/i", "$1 $2", $mystring)
But it only add space AFTER each number.
Thanks for your help!
Find the zero-width positions where you wish to inject spaces using lookarounds. No capture groups are necessary.
\d matches a numeric character.\D matches a non-numeric character.(?<=...) looks behind.(?=...) looks ahead.Code: (Demo)
$mystring = 'JS35BX54NV33';
var_export(preg_replace('/(?<=\D)(?=\d)|(?<=\d)(?=\D)/', ' ', $mystring));
Output:
'JS 35 BX 54 NV 33'
var_export() is used to reveal that there are no leading or trailing spaces generated.
Simply try with,
<?php
$re = '/(\d+)/m';
$str = 'JS35BX54NV33';
$subst = ' $1 ';
$result = preg_replace($re, $subst, $str);
echo "The result of the substitution is ".$result;
?>
WORKING DEMO: https://3v4l.org/N6rSK.