Index: H

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Index: H

handler functions: 7.9.1. Problem

error handling: 8.17.1. Problem
property overloading: 7.9.1. Problem

handles (see file handles)

hashes: 4.1. Introduction

(see also associative arrays)
verifying data with: 14.4.1. Problem

HEAD method: 11.15. Program: Finding Stale Links

11.16. Program: Finding Fresh Links

header( ): 8.5.2. Solution

12.2.3. Discussion
15.9.2. Solution
eliminating "headers already sent" errors: 8.19.1. Problem
PNG image, sending to browser: 15.1. Introduction

headers

HTTP

Accept-Language: 16.10.3. Discussion

Content-Length: 11.3.3. Discussion

Content-type: 12.2.3. Discussion

15.1. Introduction
15.9.3. Discussion

Cookie: 11.4.3. Discussion

fetching URLs with: 11.5.1. Problem

Host: 11.7.3. Discussion

Location: 8.5.2. Solution

8.5.3. Discussion
11.2.3. Discussion

"headers already sent" error message: 8.19.1. Problem

request: 11.7.2. Solution

response: 11.7.3. Discussion

using with cURL extension: 11.5.2. Solution

Window-target header: 8.5.3. Discussion

WWW-Authenticate header: 8.10.3. Discussion

mail: 17.2.3. Discussion

newsgroup messages: 17.5.3. Discussion

metainformation about postings: 17.6.3. Discussion
References header: 17.5.3. Discussion

headline or article syndication format in XML (RSS): 12.12.3. Discussion

helper functions (PHP) for XML-RPC: 12.7.2. Solution

heredocs

initializing strings with: 1.1. Introduction
interpolating with: 1.8.3. Discussion
strings in: 1.1. Introduction

hexadecimal values: 2.16.1. Problem

converting ASCII character codes to: 13.2.3. Discussion
escape sequences in double-quoted strings: 1.1. Introduction

hexdec( ): 2.15.3. Discussion

hidden form fields: 9.2.2. Solution

hashes in: 14.4.2. Solution
session tracking with: 9.4.3. Discussion
unique identifier in: 9.6.2. Solution

hierarchy, class: 7.1. Introduction

high-precision time, generating: 3.14.1. Problem

history of commands: 20.4.3. Discussion

HOME environment variable: 14.12.3. Discussion

horizontal columns in HTML table: 4.27. Program: Printing an Array in a Horizontally Columned HTML Table

horizontally aligned widgets: 20.7.3. Discussion

Host header: 11.7.3. Discussion

hostnames

DNS lookups: 17.10.3. Discussion
for news servers: 17.5.3. Discussion

hosts

finding all: 17.10.3. Discussion
pinging: 17.11.1. Problem

HTML

capturing text inside tags: 13.8.1. Problem
color values, printing out: 2.15.3. Discussion
converting to/from ASCII: 11.10.1. Problem
email containing: 17.3.1. Problem
emphasized text, converting with <b> or <i> tags: 18.17.3. Discussion
escaping control characters from user data: 9.9.1. Problem
escaping special characters in newsgroup messages: 17.6.3. Discussion
extracting links from file: 11.9.1. Problem
highlighting search results: 11.8.1. Problem
parsing, using nongreedy matching: 13.5.3. Discussion
printing array in horizontally columned: 4.27. Program: Printing an Array in a Horizontally Columned HTML Table
searching for image tag with regular expressions: 13.1. Introduction
Smarty templates for: 11.13.1. Problem
tags, removing from string or file: 11.12.1. Problem
transforming RSS feed to: 12.5.3. Discussion
Unix system logins formatted as table: 18.23.3. Discussion
XML vs.: 12.1. Introduction

HTML entities: 8.9.3. Discussion

11.10.2. Solution
12.5.3. Discussion
URL encoding and: 8.9.3. Discussion

htmlentities( ): 8.9.3. Discussion

9.9.2. Solution
11.10.2. Solution

html_errors configuration variable: 8.24.3. Discussion

htmlspecialchars( ): 9.9.3. Discussion

12.5.3. Discussion
17.6.3. Discussion

HTTP

basic authentication: 8.10.1. Problem

debugging request/response cycle: 11.7.1. Problem

exchanging information over with SOAP: 12.9.3. Discussion

headers (see headers, HTTP)

methods

GET: 8.5.3. Discussion

11.2.1. Problem
11.7.3. Discussion
18.4.3. Discussion

HEAD: 11.15. Program: Finding Stale Links

11.16. Program: Finding Fresh Links

POST: 8.5.3. Discussion

11.3.1. Problem
11.7.3. Discussion
12.8.3. Discussion
12.10.3. Discussion
17.9.3. Discussion

mixing headers and body text in buffered output: 8.19.3. Discussion

proxy server, configuring PEAR to use with: 21.2.3. Discussion

reading files via: 18.4.3. Discussion

requests, stateless nature of: 8.1. Introduction

status codes

program unable to retrieve URL: 11.16. Program: Finding Fresh Links
web page moved elsewhere (302): 11.16. Program: Finding Fresh Links
"Request-URI Too Long" (414): 11.3.3. Discussion

httpd.conf file: 8.22.2. Solution

session ID, writing to access_log for each request: 8.25.3. Discussion

HTTP_Request class: 11.1. Introduction

addHeader( ) method: 11.4.2. Solution

11.5.2. Solution

getResponseHeader( ) and getResponseBody( ): 11.7.3. Discussion

redirects and: 11.2.3. Discussion

retrieving URL contents: 11.2.2. Solution

retrieving URLs in fresh-links.php: 11.16. Program: Finding Fresh Links

username and password in URL: 11.2.3. Discussion

HTTPS: 11.6.1. Problem

HTTP_USER_AGENT environment variable: 8.8.3. Discussion

hyperbolic functions: 2.12.3. Discussion

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