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PHP Best Practices: a short, practical guide for common and confusing PHP tasks

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phpbestpractices.org/

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h1s
  • PHP Best Practices
h2s
  • A short, practical guide for common and confusing PHP tasks
  • PHP Best Practices
  • Last revised & maintainers
  • Introduction
  • What PHP version are we using?
  • Storing passwords
  • Connecting to and querying a MySQL database
  • PHP tags
  • Auto-loading classes
  • Single vs. double quotes from a performance perspective
  • define() vs. const
  • Caching PHP opcode
  • PHP and Memcached
  • PHP and regex
  • Serving PHP from a web server
  • Sending email
  • Validating email addresses
  • Sanitizing HTML input and output
  • PHP and UTF-8
  • Working with dates and times
  • Checking if a value is null or false
  • Removing accent marks (diacritics)
  • Suggestions and corrections
h3s
  • What this is
  • What this isn’t
  • PHP 7.2.10-0ubuntu​0.18.04.1, installed on Ubuntu 18.04 LTS.
  • Use the built-in password hashing functions to hash and compare passwords.
  • Use PDO and its prepared statement functionality.
  • Use <?php ?>.
  • Use spl_autoload_register() to register your auto-load function.
  • It doesn’t really matter.
  • Use define() unless readability, class constants, or micro-optimization are concerns.
  • Lucky you: PHP has a built-in opcode cache!
  • If you need a distributed cache, use the Memcached client library. Otherwise, use APCu.
  • Use the PCRE (preg_*) family of functions.
  • Use PHP-FPM.
  • Use PHPMailer.
  • Use the filter_var() function.
  • Use the htmlentities() function for simple sanitization and the HTML Purifier library for complex sanitization.
  • There’s no one-liner. Be careful, detailed, and consistent.
  • Use the DateTime class.
  • Use the === operator to check for null and boolean false values.
title PHP Best Practices: a short, practical guide for common and confusing PHP tasks
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text_size 42705
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h2_analysis 23 found
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phone_numbers
  • 2012-05-20
  • 2011-05-13 10
  • 2011-05-04 05
  • 2011-05-14 05
summary_issues
  • title: long
  • h1: short
  • No obvious responsive CSS (@media, max/min-width) detected in HTML source (may be in external CSS).
  • Meta description tag is missing or empty.
title_analysis long
meta_description None
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responsive_analysis
  • score: 5
  • messages_bad: ['No obvious responsive CSS (@media, max/min-width) detected in HTML source (may be in external CSS).']
  • messages_good: ['Recommended viewport tag found.']
searchengine_analysis
  • score: 20
  • messages_bad: ['Meta description tag is missing or empty.']
  • messages_good: ['H1 tag(s) found.', 'Site uses HTTPS.']
meta_description_analysis missing
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