Func Array Range
Php Superglobals
Filter Validate Boolean
Func Ftp Set Option
Pdo Begintransaction
Func Array Natsort
Php Preg_Split
Func Mysqli Close
Func Math Acos
Func Http Headers Sent
Func Directory Scandir
Func Misc Connection Timeout
Php Print_R Function
Func Curl_Multi_Strerror
Php Image Gd
Func Filesystem Is File
Func String Strrchr
Func Array Sort
Func Ftp Delete
Func Filesystem Copy
Func Curl_Multi_Remove_Handle
Func Curl_Unescape
Func Filesystem Clearstatcache
Func Date Isodate Set
Php Preg_Replace_Callback_Array
Php Ref Timezones
Func String Chr
Func Cal Unixtojd
Index
Func Curl_Share_Close
Func Filesystem Ftell
Php Preg_Filter
Func Math Hexdec
Func String Ord
Php Ref Libxml
Php Xml Simplexml
Func Filesystem Lstat
Pdostatement Fetch
Func String Substr Compare
Func Filter Has Var
Func Date Gettimeofday
Php Imagecolorset
Php Mysql Select
Func Ftp Nb Put
Func Array Slice
Func Simplexml Attributes
Php Debug_Zval_Dump Function
Func Date Date Sub
Php Mysql Insert
Func Array Splice
Pdo Exec
Php Imagecolorstotal
Func Date Sun Info
Func Ftp Raw
Php Post
Func String Explode
Filter Validate Booleant
Php Imageaffinematrixget
Func Date Date Set
Php Restful
Func Filesystem Pathinfo
Php Is_Object Function
Php Oop
Func Array Next
Func String Crc32
Func Date Time
Php Ref Zip
Func Mysqli Autocommit
Func Array Uintersect Assoc
Php Magic Constant
Php Boolval Function
Func Ftp Rename
Php Get_Resource_Type Function
Func String Nl Langinfo
Func String Levenshtein
Func Filesystem Chgrp
Func String Strripos
Php Mysql Intro
Func Mysqli Data Seek
Php Session Options
Func Directory Readdir
Func Array Values
Func Mysqli Field Count
Func Mysqli Select Db
Func Xml Parser Free
Func Mysqli Fetch Array
Func Math Is Nan
Func Cal Easter Date
Func Date Default Timezone Set
Func Filter Var
Func Mysqli Set Charset
Func Array Udiff Uassoc
Func Curl_Multi_Init
Func Array Replace Recursive
Func Zip Entry Compressionmethod
Func Zip Open
Func Mysqli Get Connection Stats
Func String Strtr
Func Array Filter
Func Cal Jdtounix
Func Mysqli Connect
Func Array Rsort
Func String Strspn
Func Zip Close
Filter Sanitize Number Float
Func String Echo
Func Ftp Get
Func String Substr Replace
Func Ftp Exec
Php Image Type To Mime Type
Func String Strpos
Func Math Lcg Value
Func Array Search
Func Xml Parser Create
Func Ftp Mdtm
Func Filesystem Stat
Func Array Count Values
Php Remove Sapi
Pdostatement Errorcode
Php Pdo Error Handling
Func Array Uintersect Uassoc
Func Curl_Setopt
Func Directory Chdir
Func String Join
Func String Vfprintf
Func String Convert Uudecode
Func Curl_Multi_Info_Read
Func Filesystem Filectime
Func String Vprintf
Func Xml Parse Into Struct
Func Mail Mail
Func String Convert Cyr String
Func Simplexml Addchild
Php Date
Php Intval Function
Func String Str Word Count
Php Ref Mysqli
Php Imagechar
Func Zip Entry Close
Func Filesystem Tempnam
Func Mysqli Thread Safe
Func String Strtok
Func Mysqli Ping
Func Filesystem Fgetc
Func Array End
Func Zip Read
Php Ajax Xml
Func Cal Frenchtojd
Func Array Merge
Pdostatement Setattribute
Php Filtered Unserialize
Func String Sscanf
Func Xml Set Element Handler
Func String Str Rot13
Func Cal Jewishtojd
Func Simplexml Getname
Php Imagecolorresolvealpha
Php Is_String Function
Func Array Key
Php Tutorial
Php7 New Features
Func Filesystem Disk Free Space
Func Array Diff Uassoc
Php Ajax Rss Reader
Func Math Base Convert
Func Curl_Close
Func Math Getrandmax
Func Filesystem Is Uploaded File
Func Curl_Multi_Exec
Php Gettype Function
Pdo Getavailabledrivers
Func String Ltrim
Func Array Usort
Func String Md5 File
Php Password_Needs_Rehash
Php Imagecolorallocatealpha
Func Filesystem Rmdir
Func String Rtrim
Func Misc Defined
Php Install
Filter Sanitize String
Func Array Ksort
Func Date Sunrise
Func Simplexml Asxml
Func Array Intersect
Func Array In Array
Func Array Combine
Filter Validate Email
Php Arrays Multi
Func String Lcfirst
Func Mysqli Error List
Func String Strncasecmp
Func Directory Getcwd
Pdo Errorinfo
Func Array Krsort
Func Ftp Connect
Php Cookies
Func Date Timezone Location Get
Func Misc Get Browser
Func Cal Cal Info
Php Mysql Prepared Statements
Func Xml Get Current Line Number
Func Mysqli Fetch Lengths
Func Filesystem Dirname
Func Mysqli Ssl Set
Func Filesystem Is Writable
Func String Quotemeta
Func Date Mktime
Func Array Unique
Func Curl_Version
Func Directory Closedir
Php Datatypes
Func Array Reverse
Php Filter
Php Xml Parser Expat
Func Filter List
Pdostatement Nextrowset
Func Ftp Ssl Connect
Func Mysqli Field Tell
Func Xml Get Current Byte Index
Func Filesystem Fputcsv
Func String Quoted Printable Encode
Func Simplexml Getnamespaces
Func String Str Getcsv
Pdostatement Bindvalue
Php Ref Filesystem
Php Mysql Where
Func Mysqli Character Set Name
Func Mysqli Errno
Func Math Rand
Func Mysqli Kill
Func String Hex2Bin
Func Misc Connection Status
Pdostatement Fetchall
Func Misc Sleep
Php Imageantialias
Func Date Timezone Set
Func Curl_Reset
Php Ref Math
Func Date Date Create
Func Mysqli Get Client Version
Filter Validate Url
Func Math Octdec
Php Imagecreate
Func Misc Show Source
Func Math Sqrt
Func Array Diff
Func String Str Split
Func Array Current
Func Filesystem Rename
Filter Validate Regexp
Func Error Debug Print Backtrace
Php Strval Function
Func String Hebrev
Func Ftp Mkdir
Func Filesystem Parse Ini File
Func Date Date Diff
Func Ftp Nb Continue
Func Misc Time Nanosleep
Func Array Udiff Assoc
Func Directory Rewinddir
Func Mysqli Debug
Func Ftp Nb Fget
Php Mysql Connect
Func Ftp Fput
Php Error Handling
Func Ftp Get Option
Func Math Mt Rand
Func Array Rand
Pdostatement Rowcount
Php Imagecolorclosestalpha
Func Http Setrawcookie
Func Mysqli Fetch Row
Func String Stripslashes
Func Mysqli Fetch Assoc
Func Math Cosh
Func String Strpbrk
Php Mysql Create Table
Php Forms
Func Misc Highlight String
Func String Strnatcasecmp
Func Cal Jdtojulian
Func Cal Jdtofrench
Func Error Reporting
Func Array Merge Recursive
Func Array Key Last
Func Array
Php Imageaffinematrixconcat
Func Cal Jdmonthname
Php Echo Print
Func Math Log10
Func String Strtoupper
Func Filesystem File Get Contents
Func Array Diff Ukey
Func Libxml Clear Errors
Func String Number Format
Func Mysqli Get Server Version
Func Array Intersect Ukey
Func Math Acosh
Pdostatement Bindparam
Func Mysqli Info
Php Get
Func Math Atan
Php Imagearc
Php Is_Float Function
Func Math Is Finite
Func Cal Cal Days In Month
Func Mysqli Real Escape String
Func String Sprintf
Func Mysqli Connect Errno
Func Curl_Error
Func Filesystem Chmod
Func Mysqli Get Client Info
Func Cal Cal From Jd
Php Ref Filter
Func Array Change Key Case
Func Xml Utf8 Encode
Func Curl_Multi_Add_Handle
Func Misc Die
Func String Print
Php Ajax Poll
Func Filesystem Unlink
Php File
Func Filesystem Filegroup
Func Simplexml Registerxpathnamespace
Func Filesystem Flock
Func Math Bindec
Func String Metaphone
Func String Strip Tags
Func Date Checkdate
Func Math Round
Func String Strncmp
Php Form Url Email
Php Imagecolortransparent
Func String Html Entity Decode
Func Array Arsort
Func Filesystem Fclose
Func Math Is Infinite
Func Date Modify
Func String Str Replace
Php Is_Bool Function
Php Coalescing Operator
Php Is_Scalar Function
Pdo Getattribute
Php Csprng
Func Mysqli Affected Rows
Func String Strtolower
Func Filesystem Ftruncate
Func Filesystem Is Executable
Func Error Restore Error Handler
Func Filesystem Diskfreespace
Func Math Asin
Func Ftp Close
Pdo Quote
Php Is_Resource Function
Php Is_Iterable Function
Func Mysqli Error
Php Variables
Php Ref Http
Func String Sha1
Func String Stripcslashes
Php Var_Export Function
Func Simplexml Load File
Func Mysqli Query
Func Filesystem Filesize
Func Simplexml Xpath
Func Cal Cal To Jd
Func Misc Unpack
Func Filesystem File Exists
Php Syntax
Func String Get Html Translation Table
Func Filesystem Is Link
Php Preg_Replace
Func String Count Chars
Func String Str Shuffle
Func Array Compact
Func Curl_Copy_Handle
Php Empty Function
Func Mysqli Connect Error
Php Is_Numeric Function
Php If Else
Func Curl_Errno
Php Is_Array Function
Pdo Query
Func Array Pop
Func Xml Set Default Handler
Php Ajax Php
Func Mysqli More Results
Func Mysqli Get Server Info
Func Filesystem Fputs
Pdostatement Debugdumpparams
Func Filesystem Filemtime
Func Ftp Alloc
Php Ajax Database
Php Ref Date
Func Http Setcookie
Func Misc Exit
Php Unserialize Function
Func Date Timestamp Set
Func Curl_Share_Init
Func Filesystem Fgets
Php Spaceship Operator
Func Array Column
Func Filesystem Is Readable
Func Mysqli Real Connect
Func Mysqli Next Result
Func Array Unshift
Func Array Pad
Php Imagealphablending
Php Eof Heredoc
Php Constant Arrays
Php Ref Directory
Func String Localeconv
Func Error Log
Func String Stripos
Func Array Udiff
Pdostatement Columncount
Func Mysqli Insert Id
Func Array Diff Key
Func Misc Eval
Func Array Uasort
Func Mysqli Num Fields
Func Math Exp
Func Filesystem Fscanf
Func Simplexml Import Dom
Func String Mb_Substr
Php Filter Advanced
Func Filesystem Fileatime
Func String Str Repeat
Php Operators
Func Mysqli Field Seek
Php Arrays
Php Mysql Create
Pdo Errorcode
Php Ref String
Func Math Mt Srand
Func String Similar Text
Func Math Sinh
Func Xml Set Notation Decl Handler
Func String Ucwords
Func Filesystem Fstat
Php Sessions
Php Get_Defined_Vars Function
Func Filesystem Link
Func Math Pow
Func Array Product
Func Mysqli Num Rows
Func Mysqli Options
Func Array Intersect Uassoc
Php Form Validation
Func String Mb_Strlen
Func Error User Error
Php Mysql Order By
Func Cal Jdtogregorian
Func Math Log1P
Func Math Asinh
Func Misc Strip Whitespace
Func Mysqli Fetch Fields
Func Mysqli Fetch Field Direct
Func Filesystem Touch
Func Ftp Size
Func Error Restore Exception Handler
Php Includes
Func Ftp Pwd
Func Math Decoct
Func Ftp Login
Func String Strrev
Func Filesystem Chown
Func Xml Set External Entity Ref Handler
Func String Ucfirst
Func Ftp Nb Get
Func Simplexml Count
Filter Sanitize Email
Func Ftp Nlist
Php Pdo Constants
Func Directory Opendir
Func Filesystem Fgetss
Func Date Get Last Errors
Php Imagecolorclosesthwb
Pdostatement Closecursor
Func Cal Juliantojd
Func Simplexml Load String
Php Anonymous Classes
Func Xml Error String
Php Password_Verify
Func Array Shift
Func Error Get Last
Func String Str Ireplace
Func String Quoted Printable Decode
Func Date Strtotime
Php Imagecolorclosest
Php Scalar Return Type
Func Mysqli Change User
Func String Chop
Func String Md5
Func Date Timestamp Get
Func String Implode
Func Array Count
Func Math Tan
Func Math Hypot
Php Ref Calendar
Filter Sanitize Stripped
Func Filesystem Fnmatch
Func Mysqli Refresh
Func String Strcoll
Func Mysqli Get Charset
Php Imagecolorallocate
Func Ftp Put
Pdostatement Fetchcolumn
Php Switch
Php Preg_Match_All
Func Array Map
Func Zip Entry Compressedsize
Php Image Type To Extension
Func Date Timezone Identifiers List
Func String Stristr
Php Unset Function
Func String Soundex
Func String Substr Count
Func Array Sizeof
Php Use Statement
Php Json
Func String Wordwrap
Pdostatement Errorinfo
Func Math Ceil
Func String Money Format
Filter Validate Float
Php Removed Extensions
Func Filter Input
Func Array Reduce
Filter Sanitize Number Int
Func Filesystem Fileperms
Func Date Timezone Version Get
Func Filesystem Fflush
Func Array Fill Keys
Func Filesystem Fileinode
Func String Parse Str
Func Mysqli Rollback
Func Xml Parser Get Option
Func Mysqli Fetch Object
Func String Substr
Php Is_Callable Function
Func Xml Set Character Data Handler
Func Math Mt Getrandmax
Func Mysqli Fetch Field
Filter Sanitize Special Chars
Php Db Odbc
Func Xml Get Current Column Number
Func Date Timezone Get
Func Cal Jdtojewish
Php Expectations
Func Filesystem Readlink
Func Date Time Set
Func String Strcmp
Func Math Log
Func Xml Get Error Code
Php Closure Call
Func Filesystem Fileowner
Php Serialize Function
Php Namespace
Func Array Fill
Func Libxml Use Internal Errors
Func Filesystem Fwrite
Func String Strlen
Php Ref Error
Func Math Sin
Func Filesystem Mkdir
Php Floatval Function
Func String Strcspn
Func Filesystem Filetype
Php Constants
Func Date Getdate
Func String Addslashes
Func Ftp Chdir
Func Cal Easter Days
Php Looping
Php Arrays Sort
Php Ref Misc
Func Date Gmdate
Func Filesystem Linkinfo
Php Ajax Intro
Pdo Intransaction
Func Filesystem Is Writeable
Php Ref Array
Func String Hebrevc
Func Misc Highlight File
Func Date Timezone Name From Abbr
Func Math Expm1
Filter Callback
Func Xml Utf8 Decode
Func Misc Define
Pdo Setattribute
Func Math Tanh
Func Filesystem Set File Buffer
Func Filesystem Fgetcsv
Func Filesystem Fseek
Php Mail
Func Math Pi
Pdo Commit
Php Getimagesize
Func String Crypt
Func Array Asort
Func Date Sunset
Php Xml Dom
Func Mysqli Fetch All
Func Filesystem Rewind
Func Math Srand
Func Array Prev
Func Mysqli Stat
Func String Htmlspecialchars
Func Math Atanh
Php Preg_Quote
Func Date Date
Func Simplexml Addattribute
Filter Sanitize Url
Func Date Gmmktime
Pdo Construct
Php Pdo
Func Curl_Multi_Setopt
Func String Nl2Br
Php Settype Function
Func String Vsprintf
Php Imageaffine
Func Ftp Chmod
Func Math Fmod
Func Error Set Exception Handler
Func Array Diff Assoc
Php Ref Curl
Func String Strchr
Func Date Timezone Abbreviations List
Func Ftp Site
Php Imagecharup
Php Ajax Livesearch
Func Math Cos
Pdostatement Fetchobject
Php Form Complete
Func Date Timezone Open
Func Http Headers List
Func Ftp Cdup
Func Mysqli Commit
Func Math Deg2Rad
Func String Bin2Hex
Php Functions
Func Date Localtime
Func Filesystem Fpassthru
Func Math Rad2Deg
Php File Upload
Func String Fprintf
Php Imagecolorat
Func Date Microtime
Php Intro
Func Date Create From Format
Func Curl_Escape
Func Date Date Parse
Func Curl_Init
Func Filesystem Fread
Func Http Header
Func Filesystem Pclose
Func String Sha1 File
Func Xml Set Object
Func Misc Constant
Php Getimagesizefromstring
Func Date Strftime
Func Math Abs
Php Password_Hash
Php Imagecolormatch
Func Simplexml Children
Php Looping For
Func Mysqli Thread Id
Func Filesystem Is Dir
Func Filesystem Umask
Func Array Multisort
Func Misc Time Sleep Until
Func Math Dechex
Func Curl_Strerror
Func String Strnatcmp
Func Misc Connection Aborted
Php Secure Mail
Func Filesystem Move Uploaded File
Php Var_Dump Function
Php Pcre
Func Date Timezone Name Get
Php Pdo Connections
Func Array Reset
Func String Setlocale
Php Intlchar
Filter Sanitize Magic Quotes
Func Filesystem Glob
Func Mysqli Get Host Info
Php Ref Xml
Func Date Offset Get
Php Pdo Lobs
Func Ftp Rmdir
Func Ftp Nb Fput
Php Imagesx Imagesy
Func Ftp Fget
Func Mysqli Get Client Stats
Filter Sanitize Encoded
Func Array Pos
Func String Addcslashes
Php Is_Int Function
Php Pdo Transactions
Func Array Intersect Assoc
Func Misc Usleep
Php Imagecolorexact
Func Filesystem File Put Contents
Func Array Intersect Key
Func Mysqli Stmt Init
Filter Validate Int
Func Zip Entry Read
Func Filesystem Popen
Php Ref Ftp
Func String Strrpos
Func Xml Parser Create Ns
Php Intdiv
Func Date Gmstrftime
Func Filesystem Readfile
Func String Printf
Func Math Atan2
Func Simplexml Construct
Func Curl_Setopt_Array
Pdo Lastinsertid
Php String
Func Xml Set Processing Instruction Handler
Func Curl_File_Create
Php Preg_Replace_Callback
Php Imagecolorexactalpha
Func Array Sum
Func Error Trigger Error
Func String Chunk Split
Func Date Date Format
Func Date Strptime
Php Mysql Insert Multiple
Func Mysqli Sqlstate
Func Curl_Pause
Func Simplexml Getdocnamespaces
Php Curl
Func Date Interval Format
Func Array Each
Php Is_Null Function
Func Array Keys
Php Pdo Prepared Statements
Func Date Timezone Offset Get
Func String Trim
Func Filesystem Tmpfile
Func Ftp Rawlist
Func Array Key Exists
Func Array Key First
Func Filesystem Feof
Func Directory Dir
Func String Str Pad
Func String Htmlspecialchars Decode
Func Array Extract
Func Date Date Add
Php Deprecated Features
Php Ref Mail
Php Error
Pdostatement Execute
Pdostatement Setfetchmode
Func Mysqli Init
Func Array List
Php Mysql Delete
Func Curl_Share_Setopt
Php Import_Request_Variables Function
Php Types Comparisons
Func Zip Entry Filesize
Php Variable Handling Functions
Func Filesystem Realpath
Php Preg_Last_Error
Php Password_Get_Info
Func Zip Entry Open
Func Misc Ignore User Abort
Func Directory Chroot
Filter Validate Ip
Func Array Uintersect
Php Isset Function
Func Array Natcasesort
Pdo Prepare
Func Array Replace
Pdo Rollback
Php Mysql Update
Func Curl_Exec
Func Curl_Multi_Getcontent
Func Array Walk
Func Filesystem Symlink
Func Misc Uniqid
Func Ftp Pasv
Php Form Required
Func String Convert Uuencode
Func Filesystem Fopen
Func Cal Gregoriantojd
Pdostatement Getattribute
Func Date Idate
Func Curl_Multi_Select
Func Ftp Quit
Func Error Set Error Handler
Func Array Uksort
Func Array Push
Func Filesystem File
Func Zip Entry Name
Func Filter Var Array
Func Ftp Systype
Func Mail Ezmlm_Hash
Func Math Floor
Func Array Chunk
Pdostatement Getcolumnmeta
Php Preg_Match
Func Xml Parser Set Option
Func Filter Input Array
Func Math Min
Func Math Max
Func Filesystem Basename
Php Imagecolordeallocate
Php Ref Simplexml
Func Xml Parse
Func String Strstr
Func Curl_Multi_Close
Func Array Walk Recursive
Func Curl_Getinfo
Php Image2Wbmp
Func Error Debug Backtrace
Filter Unsafe Raw
Func Date Default Timezone Get
Php Imagecolorsforindex
Php Exception
Func String Strcasecmp
Func Misc Pack
Func Array Shuffle
Func Mysqli Free Result
Func Mysqli Get Proto Info
Func Filter Id
Func Libxml Get Last Error
Func Filesystem Disk Total Space
Func Mysqli Dump Debug Info
Func Array Flip
Func Cal Jddayofweek
Php Preg_Grep
Func Libxml Get Errors
Func String Htmlentities
Php Gd Info
Func Date Parse From Format
Func Xml Set Unparsed Entity Decl Handler
Func Math Decbin
Pdostatement Bindcolumn
Func Mysqli Multi Query
PHP XML Expat Parser
The built-in Expat parser makes it possible to process XML documents in PHP.
What is XML?
XML is used to describe data, with a focus on what the data is. An XML file describes the structure of the data.
In XML, there are no predefined tags. You must define your own tags.
To learn more about XML, visit our XML Tutorial.
What is Expat?
To read and update - create and process - an XML document, you need an XML parser.
There are two basic types of XML parsers:
Tree-based parsers: These parsers transform an XML document into a tree structure. They analyze the entire document and provide access to elements in the tree, such as the Document Object Model (DOM).
Event-based parsers: These parsers view an XML document as a series of events. When a specific event occurs, the parser calls a function to handle it.
The Expat parser is an event-based parser.
Event-based parsers focus on the content of XML documents rather than their structure. Because of this, event-based parsers can access data faster than tree-based parsers.
Consider the following XML snippet:
An event-based parser reports the above XML as a series of three events:
- Start element: from
- Start CDATA section, value: Jani
- Close element: from
The above XML example is well-formed. However, it is invalid XML because it does not have a Document Type Definition (DTD) associated with it.
However, this makes no difference when using the Expat parser. Expat is a non-validating parser and ignores any DTD.
As an event-based, non-validating XML parser, Expat is fast and lightweight, making it well-suited for PHP web applications.
Note: The XML document must be well-formed, otherwise Expat will generate errors.
Installation
The XML Expat parser functions are part of the PHP core. There is no need to install them to use these functions.
XML File
The following XML file will be used in our examples:
Initializing the XML Parser
We need to initialize the XML parser in PHP, define handlers for different XML events, and then parse the XML file.
Example
The above code will output:
How it works:
- Initialize the XML parser with the xml_parser_create() function
- Create functions to handle different events
- Add the xml_set_element_handler() function to define which functions to execute when the parser encounters start and end tags
- Add the xml_set_character_data_handler() function to define which function to execute when the parser encounters character data
- Parse the file "test.xml" with the xml_parse() function
- If there are any errors, add the xml_error_string() function to convert XML errors to text descriptions
- Call the xml_parser_free() function to free the memory allocated to the xml_parser_create() function
More Information on PHP Expat Parser
For more information about PHP Expat functions, visit our PHP XML Parser Reference Manual.