Mortgage calculator PHP implementation example code (equal principal and interest, equal principal)

The following editor will bring you an example code of PHP mortgage calculator, equal principal and interest, equal principal. The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor and take a look.

The examples are as follows:

debx(); 
   
  function debx() 
  { 
    $dkm   = 240; //贷款月数，20年就是240个月 
    $dkTotal = 10000; //贷款总额 
    $dknl  = 0.0515; //贷款年利率 
    $emTotal = $dkTotal * $dknl / 12 * pow(1 + $dknl / 12, $dkm) / (pow(1 + $dknl / 12, $dkm) - 1); //每月还款金额 
    $lxTotal = 0; //总利息 
    for ($i = 0; $i < $dkm; $i++) { 
      $lx   = $dkTotal * $dknl / 12;  //每月还款利息 
      $em   = $emTotal - $lx; //每月还款本金 
      echo "第" . ($i + 1) . "期", " 本金:", $em, " 利息:" . $lx, " 总额:" . $emTotal, "<br />"; 
      $dkTotal = $dkTotal - $em; 
      $lxTotal = $lxTotal + $lx; 
    } 
    echo "总利息:" . $lxTotal; 
  } 
   
   
  function debj() 
  { 
    $dkm   = 240; //贷款月数，20年就是240个月 
    $dkTotal = 10000; //贷款总额 
    $dknl  = 0.0515; //贷款年利率 
      
    $em   = $dkTotal / $dkm; //每个月还款本金 
    $lxTotal = 0; //总利息 
    for ($i = 0; $i < $dkm; $i++) { 
      $lx   = $dkTotal * $dknl / 12; //每月还款利息 
      echo "第" . ($i + 1) . "期", " 本金:", $em, " 利息:" . $lx, " 总额:" . ($em + $lx), "<br />"; 
      $dkTotal -= $em; 
      $lxTotal = $lxTotal + $lx; 
    } 
    echo "总利息:" . $lxTotal; 
  } 
   
   
  exit;

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