Apr
09
2009
2

CSS Implementation Chart for IE6,IE7 and IE8

Since Internet Explorer8 has just joined the infamous IE family, which added bit of work (chaos) in the compatibility war. We have designed the following tool to show the difference between the "recent" IE versions, namely 6,7 and 8. Hope this would help web developers who care about browser compatibility.

Referenced from MSDN: CSS Compatibility and IE



@ Rules

IE6IE7IE8
@charset
@import
@media
@page
@font-face
@namespace

Selectors

NoteIE6IE7IE8
.value { sRules }Class
#value { sRules }ID
E { sRules }Type
* { sRules }Universal
ns|E { sRules }Namespaced
[att=val] { sRules }Equality [=]
[att] { sRules }Existence []
[att|=val] { sRules }Hyphen [|=]
[att~=val] { sRules }Whitespace [~=]
[ns|attr] { sRules }Namespaced
[att^=val] { sRules }Prefix [^=]
[att*=val] { sRules }Substring [*=]
[att$=val] { sRules }Suffix [$=]
E + F { sRules }Adjacent Sibling (+)
E > F { sRules }Child (>)
E F { sRules }Descendant
E ~ F { sRules }General Sibling (~)
:active { sRules }:active
:first-child { sRules }:first-child
:focus { sRules }:focus
:hover { sRules }:hover
:lang(C) { sRules }:lang()
:link { sRules }:link
:visited { sRules }:visited
@page :first { sRules }@page :first
@page :left { sRules }@page :left
@page :right { sRules }@page :right
:root { sRules }:root
:nth-child() { sRules }:nth-child()
:nth-last-child() { sRules }:nth-last-child()
:nth-of-type() { sRules }:nth-of-type()
:nth-last-of-type() { sRules }:nth-last-of-type()
:last-child { sRules }:last-child
:first-of-type { sRules }:first-of-type
:last-of-type { sRules }:last-of-type
:only-child { sRules }:only-child
:only-of-type { sRules }:only-of-type
:empty { sRules }:empty
:target { sRules }:target
:not(X) { sRules }:not()
:enabled { sRules }:enabled
:disabled { sRules }:disabled
:checked { sRules }:checked
:indeterminate { sRules }:indeterminate
:default { sRules }:default
:valid { sRules }:valid
:invalid { sRules }:invalid
:in-range { sRules }:in-range
:out-of-range { sRules }:out-of-range
:required { sRules }:required
:optional { sRules }:optional
:read-only { sRules }:read-only
:read-write { sRules }:read-write
:after { sRules }:after
:before { sRules }:before
:first-letter { sRules }:first-letter
:first-line { sRules }:first-line
::before { sRules }::before
::after { sRules }::after
::first-letter { sRules }::first-letter
::first-line { sRules }::first-line
::selection { sRules }::selection
::value { sRules }::value
::choices { sRules }::choices
::repeat-item { sRules }::repeat-item
::repeat-index { sRules }::repeat-index
{ sRule!important? }!important Declaration
{ list-style : sStyle }list-style
{ list-style-image : sStyle }list-style-image
{ list-style-position : sStyle }list-style-position
{ list-style-type : sStyle }list-style-type
{ color : sColor }color
{ background : sBackground }background
{ background-attachment : sAttachment }background-attachment
{ background-color : sColor }background-color
{ background-image : sLocation }background-image
{ background-position : sPosition }background-position
{ background-repeat : sRepeat }background-repeat
{ color-profile : sProfile }color-profile
{ rendering-intent : sIntent }rendering-intent
{ background : sBackground1,sBackground2, etc. }background (multiple)
{ background-clip : sClip }background-clip
{ background-origin : sOrigin }background-origin
{ background-break : sBreak }background-break
{ background-size : sSize }background-size
{ direction : sDirection }direction
{ font : sFont }font
{ font-family : sFamily }font-family
{ font-size : sSize }font-size
{ font-style : sStyle }font-style
{ font-variant : sVariant }font-variant
{ font-weight : sWeight }font-weight
{ letter-spacing : sSpacing }letter-spacing
{ line-height : sHeight }line-height
{ text-align : sAlign }text-align
{ text-decoration : sDecoration }text-decoration
{ text-indent : sIndent }text-indent
{ text-transform : sTransform }text-transform
{ unicode-bidi : sAlign }unicode-bidi
{ vertical-align : sAlign }vertical-align
{ white-space : sWrap }white-space
{ word-spacing : sSpacing }word-spacing
{ font-effect : sEffect }font-effect
{ font-emphasize : sEmphasize }font-emphasize
{ font-size-adjust : sSizeAdjust }font-size-adjust
{ font-smooth : sSmooth }font-smooth
{ font-stretch : sStretch }font-stretch
{ hanging-punctuation : sHangingPunctuation }hanging-punctuation
{ punctuation-trim : sTrim }punctuation-trim
{ ruby-align : sRubyAlign }ruby-align
{ ruby-overhang : sRubyOverhang }ruby-overhang
{ ruby-position : sRubyPlacement }ruby-position
{ ruby-span : sRubySpan }ruby-span
{ text-align-last : sAlignLast }text-align-last
{ text-emphasis : sEmphasis }text-emphasis
{ text-justify : sJustify }text-justify
{ text-outline : sOutline }text-outline
{ text-overflow : sOverflow}text-overflow
{ text-shadow : sShadow }text-shadow
{ text-wrap : sWrap }text-wrap
{ word-break : sBreak }word-break
{ word-wrap : sWrap }word-wrap
{ writing-mode : sFlow }writing-mode
{ content : sContent }content
{ counter-increment : sCounter }counter-increment
{ counter-reset : sCounter }counter-reset
{ quotes : sQuotes }quotes
{ border : sBorder }border
{ border-bottom : sBottom }border-bottom
{ border-bottom-color : sColor }border-bottom-color
{ border-bottom-style : sStyle }border-bottom-style
{ border-bottom-width : sWidth }border-bottom-width
{ border-collapse : sCollapse }border-collapse
{ border-color : sColor }border-color
{ border-left : sLeft }border-left
{ border-left-color : sColor }border-left-color
{ border-left-style : sStyle }border-left-style
{ border-left-width : sWidth }border-left-width
{ border-right : sRight}border-right
{ border-right-color : sColor }border-right-color
{ border-right-style : sStyle }border-right-style
{ border-right-width : sWidth }border-right-width
{ border-spacing : sSpacing }border-spacing
{ border-style : sStyle }border-style
{ border-top : sTop }border-top
{ border-top-color : sColor }border-top-color
{ border-top-style : sStyle }border-top-style
{ border-top-width : sWidth }border-top-width
{ border-width : sWidth }border-width
{ caption-side : sLocation }caption-side
{ clear : sClear }clear
{ empty-cells : sEmptyCells }empty-cells
{ float : sFloat }float
{ margin : sMargin }margin
{ margin-bottom : sHeight }margin-bottom
{ margin-left : sWidth }margin-left
{ margin-right : sWidth }margin-right
{ margin-top : sHeight }margin-top
{ padding : sPadding }padding
{ padding-bottom : sPadding }padding-bottom
{ padding-left : sPadding }padding-left
{ padding-right : sPadding }padding-right
{ padding-top : sPadding }padding-top
{ table-layout : sLayout }table-layout
{ border-break : sBreak }border-break
{ border-image : sImage }border-image
{ border-radius : sRadius }border-radius
{ box-shadow : sShadow }box-shadow
{ bottom : sBottom }bottom
{ clip : sClip }clip
{ display : sDisplay }display
{ height : sHeight }height
{ left : sPosition }left
{ max-height : sMaxHeight }max-height
{ max-width : sWidth }max-width
{ min-height : sMinHeight }min-height
{ min-width : sMinWidth }min-width
{ overflow : sOverflow }overflow
{ position : sPosition }position
{ right : sPosition }right
{ top : sTop }top
{ visibility : sVisibility }visibility
{ width : sWidth }width
{ z-index : vOrder }z-index
{ overflow-x : sOverflow }overflow-x
{ overflow-y : sOverflow }overflow-y
{ orphans : nLines }orphans
{ page-break-after : sBreak }page-break-after
{ page-break-before : sBreak }page-break-before
{ page-break-inside : sBreak }page-break-inside
{ widows : nLines }widows
{ fit : sFit }fit
{ fit-position : sPosition }fit-position
{ image-orientation : sOrientation }image-orientation
{ page : sPage }page
{ size : sSize }size
{ cursor : sCursor }cursor
{ outline : sOutline }outline
{ outline-color : sColor }outline-color
{ outline-style : sStyle }outline-style
{ outline-width : sWidth }outline-width
{ appearance : sAppearance }appearance
{ box-sizing : sSizing }box-sizing
{ icon : sIcon }icon
{ nav-down : sNavDown }nav-down
{ nav-index : sIndex }nav-index
{ nav-left : sNavLeft }nav-left
{ nav-right : sNavRight }nav-right
{ nav-up : sNavUp }nav-up
{ outline-offset : sOffset }outline-offset
{ outline-radius : sRadius }outline-radius
{ resize : sResize }resize
{ column-break-after : sSize }column-break-after
{ column-break-before : sSize }column-break-before
{ column-break-inside : sSize }column-break-inside
{ column-count : sCount }column-count
{ column-gap : sSize }column-gap
{ column-rule : sRule }column-rule
{ columns : sColumns }columns

Values

IE6IE7IE8
<number>
<length>
<percentage>
<integer>
<angle>
<time>
<frequency>
<string>
\code
rect()
url()
counter()
attr()
calc()
<color> (names)
<color> (#rrggbb or #rgb Notation)
<color> (rgb(r,g,b) Notation)
<color> (system colors)
transparent
<color> (rgba(r,g,b,a) Notation)
<color> (hsl(h,s,l) Notation)
<color> (hsla(h,s,l,a) Notation)
auto
inherit
initial
Jan
17
2009
10

PHP Frameworks Comparison Test

We have done enough reading and digging on the net just to see how others test and compare PHP frameworks, however there are hardly anything recent and convincing. Most of the test are on throughput of a simple 'Hello World' page, which we don't think reflect the real performance of a framework, simply because no Database interaction was involved, hence Model as in MVC is not tested at all. So we decide to conduct our own test with a more real world case, which would require MVC work together intensively to get up the result.

The Test

We have each programmer picked a popular PHP framework, and the task is to setup the framework and create MVC for the benchmark, which involves,
  • 1000 database insertion
  • 1000 database update
  • query 1000 records (all fields), and display in a list
  • each record size is about 2kb
We then put all the coded project onto one work station which has the following configuration,
  • Pentium 4, 4.3GHz
  • 2GB RAM
  • Windows XP, SP3
  • XAMPP 1.7.0 (patched to work with PDO)
  • APC enabled (Zend Optimizer disabled)
  • All programs turned off, including Anti-Virus and Firewall
We use a PHP batch script under CMD to make queries to each framework 10 times, and reports on the average response time and memory usage.

The Result

Framework Database Engine Avg. Response Time Avg. Memory Usage
Pure PHP mysqli 5.28s
 
0.14MB
 
oModel* adodb mysql 7.13s
 
6.88MB
 
Yii Framework
(yiilite)
pdo_mysql 7.41s
 
8.38MB
 
Yii Framework pdo_mysql 7.7s
 
9.44MB
 
Kohana mysqli 7.68s
 
11.22MB#
 
Zend Framework pdo_mysql 8.37s
 
7.99MB
 
Zend Framework mysqli 11.28s
 
7.88MB
 
Akelos mysqli 12.98s
 
10.93MB
 
* The Orite in-house lightweight MVC framework
# With <benchmark> parameter turned off in the database config file, it only uses 1.5MB memory, and takes about 7.8s. Thanks Jeremy Bush for the advice. (updated 24/07/2009)

The Verdicts

Framework Pro. Con.
oModel Fastest framework, light file structure, highly flexible, real short learning curve Not as comprehensive, not well documented, no community support, need high skill set to work on for large-scale project
Yii Framework Fast, comprehensive, simple and secure file structure, strictly php5 OO, well documented, code generation Farely new, still building community awareness
Kohana Flexibility, Easy start Big memory footprint, DB feature incomplete
Zend Framework Great library set, flexible, best community support Long learning curve, code generation problem*
Akelos Great RoR port, database migration Slow, php4
* We have try to run Zend-Tool on two workstations, all failed to run

The Conclusion

We understand this benchmark comparison is still bit off the real world, as it has too much emphasis on the database operation, where as in real web scenario the result can vary on different server deployment. Also, we didn't test cache mechanisms under each framework, which would play a real important role in the production environment, when server gets lot of hits on dynamic content, the result can be really different depend on project nature. Hopefully Orite will further test  real web project taken most the core features of frameworks in consideration. If we were after speed, we would stick with oModel which had been the backbone of lots of recent Orite projects. After testing the frameworks, our team had picked both Zend Framework which has the most supportive community and feature set, and Yii Framework the good combination of comprehensive feature, ease of use and performance. We will start few project based on Yii Framework and continuously keep eyes and hands on Zend. Interesting findings regarding this topic will be posted after we have dived into these frameworks a bit more.

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