试图在PHP5.2中创建一个通用函数，错误消息未显示_Php

试图在PHP5.2中创建一个通用函数，错误消息未显示

php

试图在PHP5.2中创建一个通用函数，错误消息未显示,php,Php,您好，我正在尝试在PHP5.2中创建一个通用函数，但我无法获得要显示的错误消息。我不确定如何将变量传递给validate函数。如何创建等于所有输入字段的输入变量？我是否需要将所有输入放入数组？对于经验丰富的php程序员来说，这可能是一个简单的问题，但对我来说，我仍然对php的每一个方面都很熟悉。我在下面包含了我的代码。谢谢: <?php $debug=1; $output_form= true; //$valid_ = 0; //$e

您好，我正在尝试在PHP5.2中创建一个通用函数，但我无法获得要显示的错误消息。我不确定如何将变量传递给validate函数。如何创建等于所有输入字段的输入变量？我是否需要将所有输入放入

数组

？对于经验丰富的php程序员来说，这可能是一个简单的问题，但对我来说，我仍然对php的每一个方面都很熟悉。我在下面包含了我的代码。谢谢:

    <?php
      $debug=1;
      $output_form= true;
      //$valid_ = 0;
      //$error_text= "";


    function validateFormInput($input, $patterns, &$errors)
        {
            $valid_ = false;
            $new    =   false;
            foreach($input as $key => $value) {
                if(!preg_match($patterns[$key], $value, $match)) {
                    $new[$key]  =   $errors[$key];
                    //$output_form = false;
                }
                // Remove errors if validation is made
                else
                    unset($errors[$key]);
                              $valid_= true;
                         //$output_form = true; 
            }
            //$output_form = false;
            return $new;
        }

    //initialization
    $inputs = array(
        "fname" => '',
        "lname" => '',
        "phone" => '',
        "city" => '',
        "state" => '',
        );

    $patterns = array(
        "fname" => '/^[a-zA-Z]{2,15}$/',
        "lname" => '/^[a-zA-Z]{2,15}$/',
        "phone" => '/^(\(\d{3}\))(\d{3}\-)(\d{4})$/',
        "city" => '/^[a-zA-Z]{3,20}$/',
        "state" => '/^[a-zA-Z]{2}$/',
        );

    $errors = array(
        "fname" => "Please enter your FIRST name between 2 and 15 letters.",
        "lname" => "Please enter your LAST name between 2 and 15 letters.",
        "phone" => "Please enter your phone number in (###)###-### format.",
        "city" => "Please enter your city name between 3 and 20 letters.",
        "state" => "Please enter your state's abbreviation (Example: CA).",
        );

    if(isset($_POST['submit'])) {
        if ($debug) {
                echo "<pre>";
                print_r($_POST);
                echo "</pre>"; 

                //echo "<pre>";
                //print_r($_FILES);
                //echo "</pre>"; 
            //die("temp stop point");
              } //debug only
                $fname=trim($_POST['fname']);
                $lname=trim($_POST['lname']);
                $phone=trim($_POST['phone']);
                $city=trim($_POST['city']);
                $state=trim($_POST['state']);


        $inputs =   $_POST;
        //$output_form = false;
        // Just unset the submit and pass the $_POST via $inputs
        unset($inputs['submit']);
    //$output_form = false;
        validateFormInput($inputs,$patterns,$errors);
      //$output_form = false;
        if($errors)
            echo implode("<br />",$errors);
        $mobile = preg_replace('/\D+/', '', $phone);
             $output_form = false;  


    } 

    //if ($valid_) {$output_form =false;}

    //$not_valid = validateFormInput($inputs,$patterns,$errors);
    //if($not_valid)
        //echo implode("<br />",$not_valid);

    //$output_form = false;
       //else { $output_form = false;}

        ?>
?>

    <!DOCTYPE html>
<html>
  <head>
    <title>Lesson 7</title>
    <meta charset="UTF-8">
    <meta name="description" content="php">
    <meta name="keywords" content="php">
    <meta name="author" content="William Payne">
    <link rel="stylesheet" type="text/css" href="xxxxxxxxxxxx">
  </head>
  <body>    
    <div class="formLayout">
<?php 
//form
  if ($output_form) {
?>
    <form action="<?=htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="post" enctype="multipart/form-data">  
     <fieldset>
     <legend>Info</legend>
     <?=$error_text ?>
     <label>First Name:</label><input name="fname" type="text" value="<?=$fname; ?>"><br>
     <label>Last Name:</label><input name="lname" type="text" value="<?=$lname; ?>"><br>
     <label>Phone Number:</label><input name="phone" type="text" value="<?=$phone; ?>"><br>
     <label>City:</label><input name="city" type="text" value="<?=$city; ?>"><br>
     <label>State:</label><input name="state" type="text" value="<?=$state; ?>"><br>
     </fieldset>
     <input name="submit" id="submit" type="submit" value="submit"><br>
    </form> 
<?php
  } else {
    //replace_mobile();
    //Processing for database inclusion, email cofirmation can also go here, thank you
    //2nd way to Solve Not using regex preg_replace $p = $phone; <?="$p[1]$p[2]$p[3]$p[5]$p[6]$p[7]$p[9]$p[10]$p[11]$p[12]";//
    ?>       
 <p><strong><?="$welcome_msg"; ?></strong></p>  
 <p><strong><?="$lname".''.', '. "$fname";?></strong></p>
 <p><strong><?="$phone".''.', '."$mobile";?></strong></p>
 <p><strong><?="$city".''.', '."$state";?></strong></p> 
 <?php
  } //end if/else form output
?>
     </div>
  </body>
</html>

在我的评论之后，我的意思是将变量作为数组传递，然后在其上循环，应用您的模式，并通过引用传递$errors
：
// Errors array.
$errArray = [];

//function
function validateFormInput($input, $fieldName, $isRequired, $min, $max, $patterns, $example = '') {

           // Trimming the input to get rid of empty spaces on the sides
           $input = trim($input);

           // If the provided value of required == 'yes', and variable is -
           // empty add an error to the errors array.
           if($isRequired == 'yes' && empty($input)){
             $errArray[] = $fieldName. ' is required';
           }else{

                // If the input is less than min or more than max -
                //compose the error and add it to the errors array.
                if(strlen($input) < $min || strlen($input) > $max ){
                    $errArray[] = 'Please enter your ' .$fieldName.' between ' .$min. ' and ' .$max. ' letters.<br>';
                }

               // Checking against the given pattern.the array.
               if(!preg_match($patterns, $input)){

                   //if the given example is not empty, add it to the error message.
                   $example = ($example) ? ', (Example: ' .$example. ')' : '';
                   $errArray[] = 'Wrong format of ' .$fieldName . $example;

               }
           }
    }

";
$data=ob_get_contents（）；
ob_end_clean（）；
返回$data；
}
如果（isset（$_POST['submit']））{
如果（ERRMODE）{
echo printPre（$\u POST）；
$patterns = array(
    "fname" => '/^[a-zA-Z]{2,15}$/',
    "lname" => '/^[a-zA-Z]{2,15}$/',
    "phone" => '/^(\(\d{3}\))(\d{3}\-)(\d{4})$/',
    "city" => '/^[a-zA-Z]{3,20}$/',
    "state" => '/^[a-zA-Z]{2}$/',
    );

$errors = array(
    "fname" => "Please enter your FIRST name between 2 and 15 letters.<br>",
    "lname" => "Please enter your LAST name between 2 and 15 letters.<br>",
    "phone" => "Please enter your phone number in (###)###-### format.<br>",
    "city" => "Please enter your city name between 3 and 20 letters.<br>",
    "state" => "Please enter your state's abbreviation (Example: CA).<br>",
    );

// Pass by ref--------------------------------vv
function validateFormInput($input, $patterns, &$errors)
    {
        $new    =   false;
        foreach($input as $key => $value) {
            if(preg_match($patterns[$key], $value, $match))
                unset($errors[$key]);
        }

        return (empty($errors));
    }

$valid  =   false;

if(isset($_POST['submit'])) {
    $inputs =   $_POST;
    unset($inputs['submit']);

    $valid  =   validateFormInput($inputs,$patterns,$errors);

    if(!empty($errors))
        echo implode("<br />",$errors);
}

if(!$valid) {
?>
<form method="post">
    <input type="text" name="fname" value="Name" />
    <input type="text" name="lname" value="LastName" />
    <input type="text" name="phone" value="123-123-1233" />
    <input type="text" name="city" value="Reno" />
    <input type="text" name="state" value="NsrV" />
    <input type="submit" name="submit" value="submit" />
</form>
<?php   }

echo printPre（$\u文件）；
$patterns = array(
    "fname" => '/^[a-zA-Z]{2,15}$/',
    "lname" => '/^[a-zA-Z]{2,15}$/',
    "phone" => '/^(\(\d{3}\))(\d{3}\-)(\d{4})$/',
    "city" => '/^[a-zA-Z]{3,20}$/',
    "state" => '/^[a-zA-Z]{2}$/',
    );

$errors = array(
    "fname" => "Please enter your FIRST name between 2 and 15 letters.<br>",
    "lname" => "Please enter your LAST name between 2 and 15 letters.<br>",
    "phone" => "Please enter your phone number in (###)###-### format.<br>",
    "city" => "Please enter your city name between 3 and 20 letters.<br>",
    "state" => "Please enter your state's abbreviation (Example: CA).<br>",
    );

// Pass by ref--------------------------------vv
function validateFormInput($input, $patterns, &$errors)
    {
        $new    =   false;
        foreach($input as $key => $value) {
            if(preg_match($patterns[$key], $value, $match))
                unset($errors[$key]);
        }

        return (empty($errors));
    }

$valid  =   false;

if(isset($_POST['submit'])) {
    $inputs =   $_POST;
    unset($inputs['submit']);

    $valid  =   validateFormInput($inputs,$patterns,$errors);

    if(!empty($errors))
        echo implode("<br />",$errors);
}

if(!$valid) {
?>
<form method="post">
    <input type="text" name="fname" value="Name" />
    <input type="text" name="lname" value="LastName" />
    <input type="text" name="phone" value="123-123-1233" />
    <input type="text" name="city" value="Reno" />
    <input type="text" name="state" value="NsrV" />
    <input type="submit" name="submit" value="submit" />
</form>
<?php   }

}
$errors=validateFormInput（$\u POST）；
$formValid=（空（$errors））；
$fname=htmlspecialchars（$_POST['fname']）；
$lname=htmlspecialchars（$_POST['lname']）；
$phone=htmlspecialchars（$_POST['phone']）；
$city=htmlspecialchars（$_POST['city']）；
$state=htmlspecialchars（$_POST['state']）；
$mobile=preg_replace（“/\D+/”，“$phone”）；
}
?>
第七课
你可以这样做：
PHP:
因此，上述参数为：

$foo=$input
，输入值
$fieldName=Foo Name
，错误消息中的输入名称
$isRequired=是
，检查是否需要它
$min=5
，允许的最小字符数
$max=20
，允许的最大字符数
$pattern='/^[a-zA-Z]$/'
，要检查的模式
$example=”
，我没有提供示例，但这里可以是（示例：CA）
或（#####-###格式

最后，我们检查$errArray
是否为空，然后没有发现错误，否则我们将遍历errors数组并回显所有捕获的错误。
您可以将变量作为数组传递，然后应用您的模式对其进行循环。因此，基本上有3个数组进入函数。您可以顺便存储错误，然后返回因此我将创建5个diff函数调用validateFormInput（$foo，'foo name'，'yes'，5,20'，/^[a-zA-Z]$/'））；然后只需更改vars，regex，yes，5,20以满足其他4个输入要求？抱歉，不确定您的确切意思。您希望它做什么？我修改了上面的代码，通过您的更改，我只需要表单显示错误出现的时间，而不显示有效的时间，我尝试添加了一些逻辑，即使有错误，它也会执行！您将使用相同的if（$errors）
。因此，if（$errors）echo'form here'；
您不会在函数中执行此操作。如果有错误，函数只会返回数组（）
（true），如果没有错误，则返回false
。我尝试使用此逻辑-if（$errors）echo$output\u form=true；echo内爆（
，$errors）}else{echo$output\u form=true；捕获所有错误后仍返回表单。我的html表单上方有一个if$output\u form变量，然后在数据显示的表单下方有一个else。这样，表单在满足所有条件时不会显示，而只在错误出现时显示。感谢您的帮助！
$patterns = array(
    "fname" => '/^[a-zA-Z]{2,15}$/',
    "lname" => '/^[a-zA-Z]{2,15}$/',
    "phone" => '/^(\(\d{3}\))(\d{3}\-)(\d{4})$/',
    "city" => '/^[a-zA-Z]{3,20}$/',
    "state" => '/^[a-zA-Z]{2}$/',
    );

$errors = array(
    "fname" => "Please enter your FIRST name between 2 and 15 letters.<br>",
    "lname" => "Please enter your LAST name between 2 and 15 letters.<br>",
    "phone" => "Please enter your phone number in (###)###-### format.<br>",
    "city" => "Please enter your city name between 3 and 20 letters.<br>",
    "state" => "Please enter your state's abbreviation (Example: CA).<br>",
    );

// Pass by ref--------------------------------vv
function validateFormInput($input, $patterns, &$errors)
    {
        $new    =   false;
        foreach($input as $key => $value) {
            if(preg_match($patterns[$key], $value, $match))
                unset($errors[$key]);
        }

        return (empty($errors));
    }

$valid  =   false;

if(isset($_POST['submit'])) {
    $inputs =   $_POST;
    unset($inputs['submit']);

    $valid  =   validateFormInput($inputs,$patterns,$errors);

    if(!empty($errors))
        echo implode("<br />",$errors);
}

if(!$valid) {
?>
<form method="post">
    <input type="text" name="fname" value="Name" />
    <input type="text" name="lname" value="LastName" />
    <input type="text" name="phone" value="123-123-1233" />
    <input type="text" name="city" value="Reno" />
    <input type="text" name="state" value="NsrV" />
    <input type="submit" name="submit" value="submit" />
</form>
<?php   }