javascript - Increase serial number in php posting -

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i using 1 html form fetch data in php code. below php code:

for ($i = 0; $i < count($sl); $i++) { $email_body .= "sl:" . $sl[$i] . "name:" . $name[$i] . "email:" . $mail[$i] . "\n"; }

this gives output in following format:

sl   name    email 0    peter   peterxyz@xyz.com 1    purker  purker234@xyz.com

but need in following format:

sl   name    email 1    peter   peterxyz@xyz.com 2    purker  purker234@xyz.com

i can rectify code writing "$i=1;" not correct solution, code again being used in javascript. hence, please advise me how can make sl 1 when $i =0. kindly me please?

this should work in case:

$a = 1; ($i = 0; $i < count($sl); $i++) {         $email_body .= "sl:" . $a++ . "name:" . $name[$i] . "email:" . $mail[$i] . "\n"; }

demo: https://eval.in/317273


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