Help with this code does not remove the comma to the last element in this cycle

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Help with this code does not remove the comma to the last element in this cycle

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#1 by (4 votes)
#2 by (2 votes)
#3 by (2 votes)

1

$i = 0;
while ($i < $cuenta) {

        $actualizaInfoActualizar.= '$'.$campos[$i].', ';
        $i++;       
}

I want to remove the (,) that is generated in the last element, the others are fine.

php

asked by Tomas Taveras 30.05.2018 в 06:48

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3 answers

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score 4 · Answer 1

4

$i = 0;
while ($i < $cuenta) {

        $actualizaInfoActualizar.= '$'.$campos[$i].', ';
        $i++;       
}

$actualizaInfoActualizar = rtrim($actualizaInfoActualizar,",");

There he is compadre.

answered by 30.05.2018 в 07:17

score 2 · Answer 2

You can control when the last element is written without a comma.

$i = 0;

    while ($i < $cuenta) {
            if($i == ($cuenta-1)){
                $actualizaInfoActualizar.= '$'.$campos[$i];   
            }else{
                $actualizaInfoActualizar.= '$'.$campos[$i].', ';
            }
            $i++;       
    }

score 2 · Answer 3

2

The answer, make a substr() , once the loop is finished:

 $actualizaInfoActualizar = substr($actualizaInfoActualizar,0,-1);

And it would be already. I hope it serves you:)

answered by 30.05.2018 в 08:22