How to format numbers with commas in php (code example)

Today’s work requires formatting numbers to display the current commodity price, such as 2335.32, which needs to be formatted as 2,335.32 to display like this. I wrote a function. I always feel that such a simple function requires more than 30 lines of code to complete.

The specific code is as follows:

 $len){
           $number_temp = substr($integer,0,($len - $pos)).$join.$number_temp;
           break;
       }
       $i++;
   }
    //处理小数部分
    if(!empty($decimal)){
        $number_temp = !empty($number_temp) ? $number_temp.".".$decimal : "0.".$decimal;
    }
    return $number_temp;
}
$result = numberFormat(1234567.5564);
print_r($result);
?>
//结果输出1,234,567.5564

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