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PHP Tutorial

PHP HOMEPHP IntroPHP InstallPHP SyntaxPHP CommentsPHP VariablesPHP Echo / PrintPHP Data TypesPHP StringsPHP NumbersPHP CastingPHP MathPHP ConstantsPHP Magic ConstantsPHP OperatorsPHP If...Else...ElseifPHP SwitchPHP MatchPHP LoopsPHP FunctionsPHP ArraysPHP SuperglobalsPHP RegExPHP RegEx Functions

PHP Forms

PHP Form HandlingPHP Form ValidationPHP Form RequiredPHP Form URL/E-mailPHP Form Complete

PHP Advanced

PHP Date and TimePHP IncludePHP File HandlingPHP File Open/ReadPHP File Create/WritePHP File UploadPHP CookiesPHP SessionsPHP FiltersPHP Filters AdvancedPHP Callback FunctionsPHP JSONPHP Exceptions

PHP OOP

PHP What is OOPPHP Classes/ObjectsPHP ConstructorPHP DestructorPHP Access ModifiersPHP InheritancePHP ConstantsPHP Abstract ClassesPHP InterfacesPHP TraitsPHP Static MethodsPHP Static PropertiesPHP NamespacesPHP Iterables

MySQL Database

MySQL DatabaseMySQL ConnectMySQL Create DBMySQL Create TableMySQL Insert DataMySQL Get Last IDMySQL Insert MultipleMySQL PreparedMySQL Select DataMySQL WhereMySQL Order ByMySQL Delete DataMySQL Update DataMySQL Limit Data

PHP XML

PHP XML ParsersPHP SimpleXML ParserPHP SimpleXML - GetPHP XML Expat ParserPHP DOM Parser

PHP - AJAX

AJAX IntroAJAX PHPAJAX DatabaseAJAX XMLAJAX Live SearchAJAX Poll

PHP Examples

PHP ExamplesPHP CompilerPHP QuizPHP ExercisesPHP ServerPHP SyllabusPHP Study PlanPHP Certificate

PHP Reference

PHP OverviewPHP Array
array()array_change_key_case()array_chunk()array_column()array_combine()array_count_values()array_diff()array_diff_assoc()array_diff_key()array_diff_uassoc()array_diff_ukey()array_fill()array_fill_keys()array_filter()array_flip()array_intersect()array_intersect_assoc()array_intersect_key()array_intersect_uassoc()array_intersect_ukey()array_key_exists()array_keys()array_map()array_merge()array_merge_recursive()array_multisort()array_pad()array_pop()array_product()array_push()array_rand()array_reduce()array_replace()array_replace_recursive()array_reverse()array_search()array_shift()array_slice()array_splice()array_sum()array_udiff()array_udiff_assoc()array_udiff_uassoc()array_uintersect()array_uintersect_assoc()array_uintersect_uassoc()array_unique()array_unshift()array_values()array_walk()array_walk_recursive()arsort()asort()compact()count()current()each()end()extract()in_array()key()krsort()ksort()list()natcasesort()natsort()next()pos()prev()range()reset()rsort()shuffle()sizeof()sort()uasort()uksort()usort()
PHP CalendarPHP Date
checkdate()date_add()date_create_from_format()date_create()date_date_set()date_default_timezone_get()date_default_timezone_set()date_diff()date_format()date_get_last_errors()date_interval_create_from_date_string()date_interval_format()date_isodate_set()date_modify()date_offset_get()date_parse_from_format()date_parse()date_sub()date_sun_info()date_sunrise()date_sunset()date_time_set()date_timestamp_get()date_timestamp_set()date_timezone_get()date_timezone_set()date()getdate()gettimeofday()gmdate()gmmktime()gmstrftime()idate()localtime()microtime()mktime()strftime()strptime()strtotime()time()timezone_abbreviations_list()timezone_identifiers_list()timezone_location_get()timezone_name_from_abbr()timezone_name_get()timezone_offset_get()timezone_open()timezone_transitions_get()timezone_version_get()
PHP DirectoryPHP ErrorPHP ExceptionPHP Filesystem
basename()chgrp()chmod()chown()clearstatcache()copy()delete()dirname()disk_free_space()disk_total_space()diskfreespace()fclose()feof()fflush()fgetc()fgetcsv()fgets()fgetss()file()file_exists()file_get_contents()file_put_contents()fileatime()filectime()filegroup()fileinode()filemtime()fileowner()fileperms()filesize()filetype()flock()fnmatch()fopen()fpassthru()fputcsv()fputs()fread()fscanf()fseek()fstat()ftell()ftruncate()fwrite()glob()is_dir()is_executable()is_file()is_link()is_readable()is_uploaded_file()is_writable()is_writeable()lchgrp()lchown()link()linkinfo()lstat()mkdir()move_uploaded_file()parse_ini_file()parse_ini_string()pathinfo()pclose()popen()readfile()readlink()realpath()realpath_cache_get()realpath_cache_size()rename()rewind()rmdir()set_file_buffer()stat()symlink()tempnam()tmpfile()touch()umask()unlink()
PHP FilterPHP FTPPHP JSONPHP KeywordsPHP LibxmlPHP MailPHP MathPHP MiscPHP MySQLiPHP NetworkPHP Output ControlPHP RegExPHP SimpleXMLPHP StreamPHP String
addcslashes()addslashes()bin2hex()chop()chr()chunk_split()convert_cyr_string()convert_uudecode()convert_uuencode()count_chars()crc32()crypt()echo()explode()fprint()get_html_translation_table()hebrev()hebrevc()hex2bin()html_entity_decode()htmlentities()htmlspecialchars_decode()htmlspecialchars()implode()join()lcfirst()levenshtein()localeconv()ltrim()md5()md5_file()metaphone()money_format()nl_langinfo()nl2br()number_format()ord()parse_str()print()printf()quoted_printable_decode()quoted_printable_encode()quotemeta()rtrim()setlocale()sha1()sha1_file()similar_text()soundex()sprintf()sscanf()str_contains()str_ends_with()str_getcsv()str_ireplace()str_pad()str_repeat()str_replace()str_rot13()str_shuffle()str_split()str_starts_with()str_word_count()strcasecmp()strchr()strcmp()strcoll()strcspn()strip_tags()stripcslashes()stripslashes()stripos()stristr()strlen()strnatcasecmp()strnatcmp()strncasecmp()strncmp()strpbrk()strpos()strrchr()strrev()strripos()strrpos()strspn()strstr()strtok()strtolower()strtoupper()strtr()substr()substr_compare()substr_count()substr_replace()trim()ucfirst()ucwords()vfprintf()vprintf()vsprintf()wordwrap()
PHP Variable HandlingPHP XML ParserPHP ZipPHP Timezones

PHPInstallation


How to Start Using PHP?

To start using PHP, you can:

  1. Use a web host with PHP and database support
  2. Install a web server on your own PC, and then install PHP and a database

1. Use a Web Host With PHP Support

If your web host already has support for PHP, you do not need to do anything.

Just create some.php files, place them in your web directory, and the server will automatically parse them for you.

You do not need to compile anything or install any extra tools.

Because PHP is free, most web hosts offer PHP support.


2. Set Up PHP on Your Own PC

However, if your web server does not support PHP, you must:

  • install a web server
  • install PHP
  • install a database, such as MySQL

The official PHP website (PHP.net) has installation instructions for PHP:http://php.net/manual/en/install.php


PHP Version

To check your php version you can use thephpversion() function:

Example

Display the PHP version:

echo phpversion();
Try it Yourself »



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