198 PHP equivalents

PHP to Javascript Project: php.js

php.js This article is part of the 'Porting PHP to Javascript' Project, which aims to decrease the gap between developing for PHP & Javascript.

A lot of people are familiar with PHP's functions, and though Javascript functions are often quite similar, some functions may be missing or addressed differently. The Javascript implementations should be as compliant with the PHP versions as possible, a good indication is that the PHP function manual could also apply to the Javascript version.

Porting crucial PHP functions to Javascript can be fun & useful. Currently some PHP functions have been added, but readers are encouraged to contribute and improve functions by adding comments. Eventually the goal is to save all the functions in one php.js file and make it publicly available for your coding pleasure.

If you choose to contribute, let me know how you want to be credited in the function's comments. You may also want to subscribe to RSS so you receive updates whenever new functions are posted.

This is a Javascript version of the PHP function: array_walk.

PHP array_walk

Description

array_walk - Apply a user function to every member of an array

bool array_walk( array &array , callback funcname [, mixed userdata] )

array_walk() is not affected by the internal array pointer of array.array_walk() will walk through the entire array regardless of pointer position.

Parameters

array
The input array.
funcname
Typically, funcname takes on two parameters. The array parameter's value being the first, and the key/index second.

Note: If funcname needs to be working with the actual values of the array, specify the first parameter of funcname as a reference. Then, any changes made to those elements will be made in the original array itself.

Users may not change the array itself from the callback function. e.g. Add/delete elements, unset elements, etc. If the array that array_walk() is applied to is changed, the behavior of this function is undefined, and unpredictable.
userdata
If the optional userdata parameter is supplied, it will be passed as the third parameter to the callback funcname .

Return Values

Returns TRUE on success or FALSE on failure.

Javascript array_walk

Source

This is the main source of the Javascript version of PHP's array_walk

function array_walk (array, funcname, userdata) {
    // http://kevin.vanzonneveld.net
    // +   original by: Johnny Mast (http://www.phpvrouwen.nl)
    // *     example 1: array_walk ({'a':'b'}, 'void', 'userdata');
    // *     returns 1: true
    // *     example 2: array_walk ('a', 'void', 'userdata');
    // *     returns 2: false
    
    var key; 
    
    if (typeof array != 'object') {
        return false;
    }
    
    for (key in array) {
        if (typeof (userdata) != 'undefined') {
            eval (funcname + '( array [key] , key , userdata  )' );
        } else {
            eval (funcname + '(  userdata ) ');
        }
    }
    
    return true;
}

Examples

Currently there are 2 examples

Example 1

This is how you could call array_walk()

array_walk ({'a':'b'}, 'void', 'userdata');

And that would return

true

Example 2

This is how you could call array_walk()

array_walk ('a', 'void', 'userdata');

And that would return

false

More about this Project

Download php.js

To easily include it in your code, every function currently available is stored in

Normal

uncompressed source: php.js (222.3kB)
minified: php.min.js (73.9kB) [recommended]
compressed: php.packed.js (52.8kB)

Namespaced What is 'namespaced?'

uncompressed source: php.namespaced.js (275.3kB)
minified: php.namespaced.min.js (74.2kB)
compressed: php.namespaced.packed.js (53.2kB)

To download use Right click, Save Link As
Generally the best way is to use a minified version and gzip it

Credits

Respect & awards go to everybody who has contributed in some way so far:

	Onno Marsman for contributing to:
	acos, acosh, asin, asinh, atan, atanh, ceil, cos, cosh, decbin, dechex, decoct, exp, floor, fmod, getrandmax, hypot, is_finite, is_infinite, is_nan, lcg_value, log, log10, max, max, min, min, mt_getrandmax, mt_rand, pi, pow, rand, round, sin, sinh, sqrt, tan, tanh, setcookie, preg_quote, addslashes, bin2hex, count_chars, html_entity_decode, htmlentities, htmlspecialchars_decode, levenshtein, ltrim, nl2br, nl2br, ord, parse_str, rtrim, soundex, str_ireplace, str_replace, str_replace, str_rot13, str_split, strcasecmp, strip_tags, stripos, stripslashes, stristr, strlen, strnatcmp, strncasecmp, strpbrk, strpos, strrev, strripos, strrpos, strstr, strtolower, strtoupper, substr, substr_count, trim, ucfirst, ucwords, base64_decode, empty, empty, is_bool, isset, utf8_decode, utf8_encode, utf8_encode
	Michael White (link) for contributing to:
	array_count_values, get_included_files, include, include_once, require, require_once, md5, number_format, parse_str, printf, sha1, sprintf, str_pad, strnatcmp, http_build_query, floatval, is_object, print_r
	Waldo Malqui Silva for contributing to:
	array_fill, array_pad, array_product, array_rand, compact, count, range, abs, defined, ip2long, long2ip, implode, strcmp, ucwords
	Jack for contributing to:
	compact, max, min, count_chars, htmlentities, md5, parse_str, soundex, sprintf, str_ireplace, strnatcmp, trim, utf8_encode
	Jonas Raoni Soares Silva (link) for contributing to:
	shuffle, abs, setcookie, number_format, number_format, soundex, str_repeat, str_replace, str_rot13, ucwords, wordwrap, wordwrap
	Philip Peterson for contributing to:
	sizeof, log10, round, echo, get_html_translation_table, nl2br, str_replace, strchr, urldecode, urlencode, var_export
	Legaev Andrey for contributing to:
	end, reset, file, file_get_contents, function_exists, include, include_once, http_build_query, is_array, is_object
	Ates Goral (link) for contributing to:
	array_change_key_case, array_count_values, array_diff_key, get_class, preg_quote, addslashes, count_chars, str_rot13, stripslashes
	Martijn Wieringa for contributing to:
	array_shift, array_unshift, str_ireplace, str_split, strcasecmp, stripos, strnatcmp, substr
	Brett Zamir for contributing to:
	array_fill_keys, array_fill_keys, array_filter, array_merge, array_slice, str_split
	Enrique Gonzalez for contributing to:
	file_exists, filesize, decbin, decoct, deg2rad, rad2deg
	Nate for contributing to:
	array_merge, array_sum, array_unique, addslashes, echo, strncasecmp
	Philippe Baumann for contributing to:
	base_convert, bindec, dechex, hexdec, octdec, empty
	Webtoolkit.info (link) for contributing to:
	crc32, md5, sha1, utf8_decode, utf8_encode

	Carlos R. L. Rodrigues (link) for contributing to:
	array_chunk, array_unique, date, levenshtein
	Jani Hartikainen for contributing to:
	file, file_exists, file_get_contents, filesize
	Ash Searle (link) for contributing to:
	basename, printf, sprintf
	Erkekjetter for contributing to:
	ltrim, rtrim, trim
	GeekFG (link) for contributing to:
	krsort, ksort, time
	Johnny Mast (link) for contributing to:
	array_walk, array_walk_recursive, create_function
	d3x for contributing to:
	array, explode, unserialize
	marrtins for contributing to:
	array_change_key_case, addslashes, stripslashes
	AJ for contributing to:
	urldecode, urlencode
	Alex for contributing to:
	strip_tags, is_int
	Alfonso Jimenez (link) for contributing to:
	array_reduce, strpbrk
	Aman Gupta for contributing to:
	base64_decode, utf8_decode
	Arpad Ray (mailto:arpad@php.net) for contributing to:
	serialize, unserialize
	Karol Kowalski for contributing to:
	array_reverse, abs
	Mirek Slugen for contributing to:
	htmlspecialchars, htmlspecialchars_decode
	Paulo Ricardo F. Santos for contributing to:
	chunk_split, sprintf
	Sakimori for contributing to:
	strlen, wordwrap
	Thunder.m for contributing to:
	base64_decode, base64_encode
	Tyler Akins (link) for contributing to:
	base64_decode, base64_encode
	mdsjack (link) for contributing to:
	include, trim
	0m3r for contributing to:
	array_diff_assoc
	Alexander Ermolaev (link) for contributing to:
	trim
	Allan Jensen (link) for contributing to:
	number_format
	Andrea Giammarchi (link) for contributing to:
	array_map
	Andreas for contributing to:
	setcookie
	Andrej Pavlovic for contributing to:
	serialize
	Anton Ongson for contributing to:
	str_replace
	Arno for contributing to:
	htmlspecialchars
	Atli Þór for contributing to:
	nl2br
	Bayron Guevara for contributing to:
	base64_encode
	Ben Bryan for contributing to:
	print_r
	Benjamin Lupton for contributing to:
	number_format
	Brad Touesnard for contributing to:
	date
	Cagri Ekin for contributing to:
	parse_str
	Christian Doebler for contributing to:
	sleep
	Cord for contributing to:
	is_array
	David for contributing to:
	is_numeric
	David James for contributing to:
	get_class
	Dino for contributing to:
	serialize
	DxGx for contributing to:
	trim
	FGFEmperor for contributing to:
	mktime
	Felix Geisendoerfer (link) for contributing to:
	array_key_exists
	Francesco for contributing to:
	empty
	Francois for contributing to:
	htmlspecialchars_decode
	FremyCompany for contributing to:
	isset
	Gabriel Paderni for contributing to:
	str_replace
	Howard Yeend for contributing to:
	number_format
	J A R for contributing to:
	end
	Kirk Strobeck for contributing to:
	strlen
	LH for contributing to:
	empty
	Leslie Hoare for contributing to:
	rand
	Lincoln Ramsay for contributing to:
	basename
	Linuxworld for contributing to:
	bin2hex
	Luke Godfrey for contributing to:
	strip_tags
	Manish for contributing to:
	is_array
	Marc Palau for contributing to:
	strip_tags
	Mateusz "loonquawl" Zalega for contributing to:
	htmlspecialchars_decode
	MeEtc (link) for contributing to:
	date
	Mick@el for contributing to:
	stripslashes
	Nathan for contributing to:
	htmlspecialchars
	Nick Callen for contributing to:
	wordwrap
	Norman "zEh" Fuchs for contributing to:
	utf8_decode
	Ozh for contributing to:
	dirname
	Pedro Tainha (link) for contributing to:
	unserialize
	Peter-Paul Koch (link) for contributing to:
	date
	Pul for contributing to:
	strip_tags
	Pyerre for contributing to:
	checkdate
	ReverseSyntax for contributing to:
	htmlspecialchars_decode
	Robin for contributing to:
	is_nan
	Sanjoy Roy for contributing to:
	array_diff
	Saulo Vallory for contributing to:
	strncasecmp
	Scott Cariss for contributing to:
	htmlspecialchars_decode
	Simon Willison (link) for contributing to:
	str_replace
	Slawomir Kaniecki for contributing to:
	htmlspecialchars_decode
	Steve Clay for contributing to:
	function_exists
	Steve Hilder for contributing to:
	strcmp
	Steven Levithan (link) for contributing to:
	trim
	Subhasis Deb for contributing to:
	array_merge_recursive
	T.Wild for contributing to:
	substr
	T0bsn for contributing to:
	crc32
	Thiago Mata (link) for contributing to:
	call_user_func_array
	Tim Wiel for contributing to:
	date
	Tod Gentille for contributing to:
	log10
	XoraX (link) for contributing to:
	dirname
	Yannoo for contributing to:
	mktime
	Yves Sucaet for contributing to:
	utf8_encode
	baris ozdil for contributing to:
	mktime
	booeyOH for contributing to:
	preg_quote
	djmix for contributing to:
	basename
	dptr1988 for contributing to:
	unserialize
	duncan for contributing to:
	array_unique
	echo is bad for contributing to:
	echo
	gabriel paderni for contributing to:
	mktime
	ger for contributing to:
	html_entity_decode
	gorthaur for contributing to:
	strcmp
	hitwork for contributing to:
	utf8_decode
	jakes for contributing to:
	mktime
	john (link) for contributing to:
	html_entity_decode
	johnrembo for contributing to:
	var_export
	kenneth for contributing to:
	explode
	marc andreu for contributing to:
	html_entity_decode
	metjay for contributing to:
	time
	nobbler for contributing to:
	htmlentities
	noname for contributing to:
	get_html_translation_table
	penutbutterjelly for contributing to:
	str_ireplace
	sankai for contributing to:
	array_count_values
	sowberry for contributing to:
	utf8_encode
	stensi for contributing to:
	intval

Your name here?

Contributing is as easy as adding a comment with better code, or code for a new function.
Any contribution leading to improvement will directly get your name & link here.

Coming Project features

Project features that we are currently working on:

Site. A place for php.js of it's own. You can track our lame attempts at phpjs.org. If there are any CakePHP developers out there who would like to help out, please contact me.
Compile. Compile your own php.js version, with only the functions you need. Should generate a hash with which you can retrieve latest versions of your php.js combination.
docBlock. Move to docBlock comments for improved compatibility with IDEs.
Done - Testsuite. A better test-suite that can be ran locally so developers can easily test before commiting. Also the testing itself should be more thorough.
Done - Versioning. Individual functions are versioned, but the entire library should be versioned as well.