Where to get information about array fields in $_REQUEST?

This is mostly pure PHP, but it does have WordPress twist.

PHP has number of superglobal variables, that contain information relevant to current request. Out of those:

  • $_GET contains info from URL (HTTP GET request)
  • $_POST info from form submission (HTTP POST request)
  • $_COOKIES about cookies set
  • and $_REQUEST is combination of the above (according to docs $_COOKIES can be commonly configured to skip for better security)

However WP enforces its own logic – during load process wp_magic_quotes() processes variables to emulate magic quotes setting and enforces $_REQUEST to contain combination of $_GET and $_POST, no matter what PHP configuration says.

So in WordPress environment it will contain GET and/or POST request data. What data exactly that is will depend entirely which page you are on and what is happening on it.

Related Posts:

  1. Call global variable array() in woocommerce child/template
  2. How to modify a global variable in a function and use it on another function?
  3. What is the alternative code to if (isset ($_POST) && !empty ($_POST) to avoid warnings?
  4. global $product is empty string when passed into function
  5. Custom global variable not working in function
  6. How can one use variables in a template or template part without polluting the global scope?
  7. How to add elements to an empty array in PHP?
  8. How to set and use global variables? Or why not to use them at all
  9. WordPress Theme variables scope
  10. Does an activated plugin automatically mean its methods are available to other WP functions?
  11. Custom plugin: Trying to show saved data on frontend
  12. How to call a function only once (global variable scope)
  13. Pass a PHP variable to another file
  14. How to store the_title() into a variable to reutrn the value, not just echo it
  15. Create a global variable for use in all templates
  16. Variables declared in header not available in other includes
  17. Filter the blog title displayed in the header
  18. Cleanest/Fastest way to avoid calling and retrieving data from the database multiple times?
  19. JavaScript, best way to use data from the loop
  20. How to set status codes such as 401 and 403?
  21. When would you use $_post instead of $post?
  22. Can I use HTTP POSTs? Is there a better alternative?
  23. Warning: Use of undefined constant HTTP_USER_AGENT – assumed ‘HTTP_USER_AGENT’ (this will throw an Error in a future version of PHP)
  24. Locating Global Variables
  25. Pass PHP variable to JavaScript without inline JS
  26. Count the number of times the search form template gets included on a page
  27. Putting PHP variables into javascript [duplicate]
  28. Call External Object in Class Function During Callback
  29. Variable global scope [closed]
  30. How to rewrite URL with PHP variables with htaccess to a normal looking URL?
  31. Using a variable in is_page(array())
  32. Is there an equivalent to WP_Error object I can return in the case of a successful REST request?
  33. Static variable and add_rewrite_rule?
  34. How to put a variable in a instance in the widget
  35. get_term_link() returns correct – But illogical error-messages disturb
  36. How can I Add a variable PHP in the Menu Nav
  37. Pass variable from one function to another
  38. How to prevent XSS alter custom global javascript object & methods in WordPress
  39. PHP, Creating a dynamic variable
  40. Variable not staying set
  41. WordPress function and string as variable?
  42. How to pass a PHP $_GET variable and fetch/output it?
  43. Creating WordPress Shortcode with Variable
  44. How to put a form with php code into a variable or shortcode?
  45. Apply class to every third list item? [duplicate]
  46. Where is this function’s callback getting its arguments from?
  47. persist a variable set in header.php all the way down to footer.php
  48. Get access to variable from previous pageview, excluding ajax-calls
  49. How to deal with too many $_POST variable conditions from ajax request at backend? [closed]
  50. I am receiving a pluggable.php warning sign on my only http:// page
  51. How to pass a variable to get_template_part that’s updated every time the template part is called?
  52. Insert page content into another page with a changed variable
  53. How to access or parse key/values that have “string”
  54. How Do I Find & Remove H1 From Site-Title-Wrapper? [closed]
  55. Changing the order of custom fields in the dashboard for Woocommerce variable products [closed]
  56. Local WordPress with WAMP downloads files out of Nowhere
  57. javascript variable to wordpress php variable
  58. How to reference PHP in Javascript
  59. Store and Change Session variable – PHP SESSION VARIABLE
  60. Overide Variable in Child Theme
  61. echo var into wp_query
  62. how can I include some custom variable from functions.php?
  63. Php file that doesn’t recognize wordpress functions
  64. PHP variables in a post?
  65. WordPress is removing query variables like page, p from the URL of a custom static page
  66. How to send a php var to jQuery Ajax call with two different file
  67. Unable to display multiple parameters from url by javascript through shortcodes
  68. How to check a variable Changes
  69. Reading URL Parameters
  70. Display values of current POST request on page
  71. Can’t pass var from php wp_ajax into ajax script : result undefined or null
  72. Define global custom post
  73. WordPress How do I pass a variable from one add_action to another?
  74. Best way to use variables in multiple functions?
  75. Trying to add some custom text into WordPress Post title via function.php
  76. How do I fix Undefined variable using $_POST in function?
  77. Sudden Upload HTTP errors, PHP uploads and memory limits are already to high to my taste. Anything else?
  78. How to change the value of a variable using input field?
  79. Require advice handling a URL redirect from a Third Party. URL Params need to populate and then forward to payment
  80. Add class to all meta boxes for a custom post type
  81. My WP Website Shows HTTP ERROR 500
  82. Passing parameter from the current URL to redirect to another url
  83. Pulling a variable into the wp_nav_menu function
  84. Where can I find the declaration of `$_wp_theme_features`?
  85. Child theme functions.php file change database entries
  86. global $post inside plugin query messes up every new post page in wp-admin
  87. Custom Taxonomy Link Text Echo Name Not Slug
  88. Editing Global Variables from Inside Functions
  89. how to add number value in front for variable [closed]
  90. Create and update Custom Cookie based on multiple GET and POST Values for first time visitors?
  91. WordPress $GLOBALS and PHP $GLOBALS
  92. Difference in Get Variable Location
  93. If I define a variable in header.php, how do I make it available to templates?
  94. ACF allow zero as a value
  95. Can’t get options with $data[‘variable’]
  96. PHP Use Declared array Variable inside already Declared Array
  97. Import and use a variable in additional settings of Contact Form 7 [closed]
  98. Suppress errors when using global function
  99. WP query with variables gives no result for specific user
  100. Using global variables

Leave a Comment