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並感謝您的時間。我目前正在參加一個在線PHP課程，並試圖找出那些課程未涉及的內容。 如果數組存在根據某些參數存在的錯誤，則表單中會存在錯誤。目前，當錯誤顯示給用戶時，它顯示$ _POST值，但我想顯示一個自定義錯誤消息。我目前正在嘗試使用in_array和字符串替換，並失敗。我沒有收到任何PHP錯誤。 任何人都知道我該如何做到這一點？ 這裏是我的控制器和視圖：
<?php
// add database connection script
include_once 'resource/database.php';
include_once 'resource/utilities.php';
// process the form if the reset password button is clicked
if(isset($_POST['passwordResetBtn'])) {
// initialize an array to store any error message from the form
$form_errors = array();
// form validation
$required_fields = array('email', 'new_password', 'confirm_password');
// call the function to check empty fields and merge the return data into form_error array
$form_errors = array_merge($form_errors, check_empty_fields($required_fields));
// Fields that require checking for minimum length
$fields_to_check_length = array('new_password' => 6, 'confirm_password' => 6);
// call the function to check minimum required length and merge the return data into form_errors array
$form_errors = array_merge($form_errors, check_min_length($fields_to_check_length));
// email validation/merge the return data into the form_errors array
$form_errors = array_merge($form_errors, check_email($_POST));
// check if error array is empty, if yes process form data and insert record
if(empty($form_errors)) {
// collect form data and store in variables
$email = $_POST['email'];
$password1 = $_POST['new_password'];
$password2 = $_POST['confirm_password'];
// check if the new password and confirm password are the same
if($password1 != $password2) {
$result = "<p style='padding: 20px; border: 1px solid red; color: red;'>Passwords do not match, please do it over!</p>";
} else {
try {
// create sql select statement to verify if email address input exists in the database
$sqlQuery = "SELECT email FROM users WHERE email = :email";
$statement = $db->prepare($sqlQuery);
$statement->execute(array(':email' => $email));
// check if record exists
if($statement->rowCount() == 1) {
// hash the password
$hashed_password = password_hash($password1, PASSWORD_DEFAULT);
// SQL statement to update password
$sqlUpdate = "UPDATE users SET password = :password WHERE email = :email";
// sanitize the statement
$statement = $db->prepare($sqlUpdate);
// execute statement
$statement->execute(array(':password' => $hashed_password, ':email' => $email));
$result = "<p style='padding: 20px; border: 1px solid green; color: green;'>Password reset successfully</p>";
} else {
$result = "<p style='padding: 20px; border: 1px solid red; color: red;'>The email address provided does not exist in our database. Check your spelling or try another email address, por favor.</p>";
}
} catch (PDOException $ex) {
$result = "<p style='padding: 20px; border: 1px solid red; color: red;'>An error occurred: " . $ex->getMessage() . "</p>";
}
}
} else {
if(count($form_errors) == 1) {
$result = "<p style='color: red;'>There was one error in the form</p><br>";
} else {
$result = "<p style='color: red;'>There were " . count($form_errors) . " errors in the form</p><br>";
}
}
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Password Reset Page</title>
</head>
<body>
<?php if(isset($result)) echo $result; ?>
<?php if(!empty($form_errors)) echo show_errors($form_errors); ?>
<form method="post" action="">
<table>
<tr><td>Email:<td><input type="text" value="" name="email"></td></td></tr>
<tr><td>New Password<td><input type="password" value="" name="new_password"></td></td></tr>
<tr><td>Confirm Password:</td> <td><input type="password" value="" name="confirm_password"></td></tr>
<tr><td></td><td><input style="float: right;" type="submit" name="passwordResetBtn" value="Reset Password"></td></tr>
</table>
</form>
<p><a href="index.php">Back</a></p>
</body>
</html>
這裏是utilities.php功能檢查領域的最小長度：
function check_min_length($fields_to_check_length) {
// initialize an array to store error messages
$form_errors = array();
foreach($fields_to_check_length as $name_of_field => $minimum_length_required) {
if(strlen(trim($_POST[$name_of_field])) < $minimum_length_required) {
$form_errors[] = $name_of_field . " is too short, must be {$minimum_length_required} characters long";
}
}
return $form_errors;
}
這裏是我的跛腳的嘗試，試圖找到$ _ POST [ 'NEW_PASSWORD']值，將其交換字符串 「新密碼」
1日未遂）
if(isset($_POST[$name_of_field]) && $_POST[$name_of_field] == $_POST['new_password']) {
$name_of_field = str_replace($name_of_field, "New password", $_POST['new_password']);
}
第2次嘗試）
if(in_array($_POST['new_password'], $form_errors)) {
$_POST['new_password'] = str_replace($_POST['new_password'], "New Password", $form_errors);
}
我試圖把我的嘗試幾乎無處不在主控制器和check_min_length函數中。我知道我的嘗試是可笑的。我仍然在努力學習基本的PHP和編程。
謝謝你的時間。
你需要在你的php.ini中打開display_errors並重啓apache或者檢查你的錯誤日誌以找到你正在得到的錯誤 –
謝謝Liam。我的顯示錯誤在MAMP默認打開。我假設我的PHP沒有錯誤，但代碼沒有做任何事情，因爲我基本上沒有瞄準任何東西。然後再次，我還是新的，所以我的信心非常低。 – Collin512
如果你不確定，那麼你總是可以檢查你的錯誤日誌，並看看你的最後一個錯誤，就像你收到一個空白屏幕一樣，你的錯誤不會顯示出來，但可以通過使用ini_set（）在代碼頂部覆蓋。並覆蓋ini設置 –