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POAccessing $_POST array from objects called on page
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6529320
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6530236
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2011-06-30T02:19:42.660
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2013-04-02T16:42:05.060
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2011-06-30T03:15:52.453
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I have a page that receives POST data from a form. I also have a form validation class that attempts to access the $_POST array when a FormValidation object is created on the page. However, the FormValidation object does not seem to have access to the $_POST array. Why is this happening, and how can I fix this? EDIT: Added code :) This code is from register.php <pre><code>if($_SERVER['REQUEST_METHOD'] == 'POST') { var_dump($_POST); $errors = validate_form(); if(count($errors) > 0) { display($errors); } else { act(); } } else { display(); } function validate_form() { $validator = new FormValidation('POST'); $validator->add_field('first_name', 'First Name'); $validator->add_field('last_name', 'Last Name'); $validator->add_field('email_address', 'Email Address'); $validator->add_field('password', 'Password'); $validator->add_field('password_confirmation', 'Password Confirmation'); $validator->add_rule('first_name', 'required'); $validator->add_rule('last_name', 'required'); $validator->add_rule('email_address', 'required'); $validator->add_rule('email_address', 'is_valid_scarsdaleschools_email'); $validator->add_rule('password', 'required'); $validator->add_rule('password_confirmation', 'required'); $validator->add_rule('password_confirmation', 'matches', array('password', 'Password')); return $validator->validate(); } </code></pre> The form validation code looks like this <pre><code>class FormValidation { var $fields; var $rules; //Associative array that maps field_name to array of rules var $errors; var $form_method_type; function FormValidation($form_method_type) { $this->form_method_type = strtoupper($form_method_type); $this->fields = array(); //maps fields to field labels $this->rules = array(); $this->errors = array(); } function validate() { foreach(array_keys($this->fields) as $field_name) { if(!array_key_exists($field_name, $this->rules)) { continue; } foreach(array_keys($this->rules[$field_name]) as $rule_name) { call_user_func_array(array($this, $rule_name), $this->rules[$field_name][$rule_name]); } } return $this->errors; } function add_field($field_name, $field_label) { $this->fields[$field_name] = $field_label; } function add_rule($field_name, $rule_name, $parameters=array()) { if(!isset($this->rules[$field_name])) { $this->rules[$field_name] = array(); } array_unshift($parameters, $field_name, $this->fields[$field_name]); $this->rules[$field_name][$rule_name] = $parameters; } function var_isset($field_name) { global ${'$_' . $this->form_method_type}; var_dump(${'$_' . $this->form_method_type}[$field_name]); return isset(${'$_' . $this->form_method_type}[$field_name]); } function get_value($field_name) { global ${'$_' . $this->form_method_type}; return ${'$_' . $this->form_method_type}[$field_name]; } //////////////////////////////////////////////////////////// /////RULES////////////////////////////////////////////////// //////////////////////////////////////////////////////////// function required($field_name, $field_label) { if(!$this->var_isset($field_name)) { $this->errors[$field_name] = "$field_label is a required field"; } } function is_valid_email($field_name, $field_label) { if($this->var_isset($field_name)) { if(!validEmail($this->get_value($field_name))) { $this->errors[$field_name] = "$field_label requires a valid email address"; } } } function is_alpha($field_name, $field_label) { if($this->var_isset($field_name)) { if(!ctype_alpha($this->get_value($field_name))) { $this->errors[$field_name] = "$field_label requires alphabetical characters only"; } } } function is_alphanumeric($field_name, $field_label) { if($this->var_isset($field_name)) { if(!ctype_alnum($this->get_value($field_name))) { $this->errors[$field_name] = "$field_label requires alphanumeric characters only"; } } } function is_integer_number($field_name, $field_label) { if($this->var_isset($field_name)) { if(!is_int($this->get_value($field_name)) || preg_match('[-+]?[0-9]+', $this->get_value($field_name)) == 0) { $this->errors[$field_name] = "$field_label must be an integer"; } } } function is_float_number($field_name, $field_label) { if($this->var_isset($field_name)) { if(!is_float($this->get_value($field_name)) || preg_match('[-+]?[0-9]*\.?[0-9]+', $this->get_value($field_name)) == 0) { $this->errors[$field_name] = "$field_label must be a number"; } } } function is_valid_scarsdaleschools_email($field_name, $field_label) { if($this->var_isset($field_name)) { if(!validEmail($this->get_value($field_name))) { $this->errors[$field_name] = "$field_label requires a valid email address"; } $email = $this->get_value($field_name); if(!(endsWith($email, 'scarsdaleschools.org', $case=false) || endsWith($email, 'scarsdaleschools.com', $case=false) || endsWith($email, 'scarsdaleschools.k12.ny.edu', $case=false))) { $this->errors[$field_name] = "$field_label requires a Scarsdale Schools email address"; } } } function max_length($field_name, $field_label, $max_length) { if($this->var_isset($field_name)) { if(strlen($this->get_value($field_name)) > $max_length) { $this->errors[$field_name] = "$field_label cannot be longer than $max_length characters"; } } } function min_length($field_name, $field_label, $min_length) { if($this->var_isset($field_name)) { if(strlen($this->get_value($field_name)) > $min_length) { $this->errors[$field_name] = "$field_label must be at least $min_length characters"; } } } function matches($field_name, $field_label, $match_field_name, $match_field_label) { if($this->var_isset($field_name) && !$this->var_isset($match_field_name)) { $this->errors[$field_name] = "$field_label must match $match_field_label"; } elseif(!$this->var_isset($field_name) && $this->var_isset($match_field_name)) { $this->errors[$field_name] = "$field_label must match $match_field_label"; } if($this->var_isset($field_name) && $this->var_isset($match_field_name)) { if(strcmp($this->get_value($field_name), $this->get_value($match_field_name)) != 0) { $this->errors[$field_name] = "$field_label must match $match_field_label"; } } } } </code></pre> Thanks for the help!
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Accessing $_POST array from objects called on page
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1. COYou need to show some code.
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2. CO`$_POST` is a superglobal, meaning that it's available in any scope at any time. As long you are still in the same script to which the form data was posted, `$_POST` should be available anywhere.
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 POAccessing $_POST array from objects called on page
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