php implode
$colors = array("red","blue","green");
$colorsCSV= "'".implode("','",$colors)."'";
//$colorsCSV: 'red','blue','green'
                                
                            php implode
$colors = array("red","blue","green");
$colorsCSV= "'".implode("','",$colors)."'";
//$colorsCSV: 'red','blue','green'
                                
                            Convert an Array to a String in PHP
phpCopyimplode($string, $arrayName);
                                
                            array to string conversion in php
function subArraysToString($ar, $sep = ', ') {
    $str = '';
    foreach ($ar as $val) {
        $str .= implode($sep, $val);
        $str .= $sep; // add separator between sub-arrays
    }
    $str = rtrim($str, $sep); // remove last separator
    return $str;
}
// $food array from example above
echo subArraysToString($food);
// apple, raspberry, pear, banana, peas, carrots, cabbage, wheat, rice, oats
                                
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