Add content for PHP strings (#27489)

* Add content for PHP strings * fix: resolved conflict
2019-02-28 19:37:12 -05:00
parent 3f2b07ed71
commit 0890dda962
76 changed files with 5664 additions and 9 deletions
--- a/mock-guide/english/php/php-cookies/index.md
+++ b/mock-guide/english/php/php-cookies/index.md
@@ -0,0 +1,116 @@
+---
+title: PHP Cookies
+---
+
+# PHP COOKIES
+
+## What is a Cookie?
+
+A cookie is often used to identify a user. It is a small file that the server embeds on the user's computer.
+Each time the same computer requests a page with a browser, it will send the cookie too.  
+Cookies were designed to be a reliable mechanism to remember stateful information or to record the user's browsing activity.  
+They can also be used to remember arbitrary pieces of information that the user previously entered into form fields such as names, addresses, passwords, etc.
+
+## Creating Cookies with PHP
+
+With PHP, you can both create and retrieve cookie values.
+A cookie is created with the setcookie() function.
+
+`setcookie(name, value, expire, path, domain, secure, httponly);`  
+
+Only the _name_ parameter is a required parameter. All other parameters are optional.
+
+
+## PHP Create/Retrieve a Cookie
+
+The following example creates a cookie named "user" with the value "John Doe".  
+The cookie will expire after 30 days (86400 * 30).  
+The "/" means that the cookie is available in entire website (else, you can select the directory you prefer).  
+We then retrieve the value of the cookie "user" (using the global variable $_COOKIE).  
+We also use the isset() function to find out if the cookie is set:
+
+**Example:**
+```
+<?php
+$cookie_name = "user";
+$cookie_value = "John Doe";
+setcookie($cookie_name, $cookie_value, time() + (86400 * 30), "/");  // 86400 = 1 day
+?>
+<html>
+<body>
+
+<?php
+if(!isset($_COOKIE[$cookie_name])) {
+    echo "Cookie named '" . $cookie_name . "' is not set!";
+} else {
+    echo "Cookie '" . $cookie_name . "' is set!<br>";
+    echo "Value is: " . $_COOKIE[$cookie_name];
+}
+?>
+</body>
+</html>
+```
+
+**Note:** The setcookie() function must appear **BEFORE** the <html> tag.
+
+
+Output:  
+Cookie 'user' is set!  
+Value is: John Doe
+
+
+## PHP Modify a Cookie Value
+
+To modify a cookie, just set the value again using the setcookie() function:
+
+**Example:**
+```
+<?php
+$cookie_name = "user";
+$cookie_value = "Jane Porter";
+setcookie($cookie_name, $cookie_value, time() + (86400 * 30), "/");
+?>
+<html>
+<body>
+
+<?php
+if(!isset($_COOKIE[$cookie_name])) {
+    echo "Cookie named '" . $cookie_name . "' is not set!";
+} else {
+    echo "Cookie '" . $cookie_name . "' is set!<br>";
+    echo "Value is: " . $_COOKIE[$cookie_name];
+}
+?>
+
+</body>
+</html>
+```
+
+Output:  
+Cookie 'user' is set!  
+Value is: Alex Porter
+
+
+## PHP Delete a Cookie
+
+To delete a cookie, use the setcookie() function with an expiration date in the past:
+
+**Example:**
+```
+<?php
+// set the expiration date to one hour ago
+setcookie("user", "", time() - 3600);
+?>
+<html>
+<body>
+
+<?php
+echo "Cookie 'user' is deleted.";
+?>
+
+</body>
+</html>
+```
+
+Output:  
+Cookie 'user' is deleted.