blocks|key|1857668|text|我发现了这个插件：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1857669|http://www.jnathanson.com/blog/client/jquery/heatcolor/index.cfm#examples|offset|length|1857670|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|21|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

I found this plugin:

<a href="http://www.jnathanson.com/blog/client/jquery/heatcolor/index.cfm#examples" rel="nofollow">http://www.jnathanson.com/blog/client/jquery/heatcolor/index.cfm#examples</a>

blocks|key|447297|text|function+getProperColor($number)
{
++++if+($var+>+0+&&+$var+<=+5)
++++++++return+'#00FF00';
++++else+if+($var+>=+6+&&+$var+<=+10)
++++++++return+=+'#FF8000';
++++else+if+($var+>=+11)
++++++++return+=+'#FF0000';
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|447298|并像这样使用它|unstyled|447299|<div+style="background-color:+<?=getProperColor($result['number'])?>;"><?=$result["title"]?></div>|447300|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|L|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|I|3|-4|5|F|7|N|8|@]|9|@]|A|$]]]|J|$]]

<pre><code>function getProperColor($number)
{
 if ($var &gt; 0 &amp;&amp; $var &lt;= 5)
 return '#00FF00';
 else if ($var &gt;= 6 &amp;&amp; $var &lt;= 10)
 return = '#FF8000';
 else if ($var &gt;= 11)
 return = '#FF0000';
}
</code></pre>

And use it like this

<pre><code>&lt;div style="background-color: &lt;?=getProperColor($result['number'])?&gt;;"&gt;&lt;?=$result["title"]?&gt;&lt;/div&gt;
</code></pre>

blocks|key|448414|text|$color+=+"#000000";

if+(($v+>=+1)+&&+($v+<=+5))
+++$color+=+"#00FF00";
else+if+(($v+>=+6)+&&+($v+<=+10))
+++$color+=+"#FF9900";
else+if+($v+>=+11)
+++$color+=+"#FF0000";

echo+"<span+style=\"color:+$color\">Text";|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|448415|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>$color = "#000000";

if (($v &gt;= 1) &amp;&amp; ($v &lt;= 5))
 $color = "#00FF00";
else if (($v &gt;= 6) &amp;&amp; ($v &lt;= 10))
 $color = "#FF9900";
else if ($v &gt;= 11)
 $color = "#FF0000";

echo "&lt;span style=\"color: $color\"&gt;Text&lt;/span&gt;";
</code></pre>

blocks|key|448469|text|颜色值是否由常量索引？我会准备哈希表|type|unstyled|depth|inlineStyleRanges|entityRanges|data|448470|$colorMap[0]+=+'#00FF00';+//green
$colorMap[1]+=+'#0000FF';+//blue
$colorMap[2]+=+'#FF0000';+//red
$colorMap[3]+=+'#330000';+//dark+red|code-block|syntax|javascript|448471|诸若此类。然后使用CSS|448472|<span+style="color:+<?php+echo+$colorMap[$var];+?>;">desired+color|448473|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Are color values indexed by constants? I would prepare hash map

<pre><code>$colorMap[0] = '#00FF00'; //green
$colorMap[1] = '#0000FF'; //blue
$colorMap[2] = '#FF0000'; //red
$colorMap[3] = '#330000'; //dark red
</code></pre>

and so on. Then use CSS 

<pre><code>&lt;span style="color: &lt;?php echo $colorMap[$var]; ?&gt;;"&gt;desired color&lt;/span&gt;
</code></pre>

blocks|key|447275|text|类似于下面这三个if语句：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|447276|if+($var+<+10)+$color+=+'#FF8000';
if+($var+<+6)+$color+=+'#00FF00';
if+($var+>=+10)+$color+=+'#FF0000';

echo+"<span+style=\"color:+$color;\">This+text+is+colored.";|code-block|syntax|javascript|447277|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Something like this trio of if statements:

<pre><code>if ($var &lt; 10) $color = '#FF8000';
if ($var &lt; 6) $color = '#00FF00';
if ($var &gt;= 10) $color = '#FF0000';

echo "&lt;span style=\"color: $color;\"&gt;This text is colored.&lt;/span&gt;";
</code></pre>

blocks|key|1857488|text|如果你要使用一组if语句，你需要实际使用elseif+if语句，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1857489|+if+($var+<+6)+$color+=+'#00FF00';
elseif+($var+<+10)+$color+=+'#FF8000';
elseif+($var+>+10)+$color+=+'#FF0000';|code-block|syntax|javascript|1857490|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You need to actually use elseif statements if your going to use a set of if statements,

<pre><code> if ($var &lt; 6) $color = '#00FF00';
elseif ($var &lt; 10) $color = '#FF8000';
elseif ($var &gt; 10) $color = '#FF0000';
</code></pre>

blocks|key|1195378|text|我将使用CSS颜色，并强调数字11不会根据您的规则映射到任何颜色，这使得大多数答案无效:)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1195379|<?php

$color=getColor(11);

function+getColor($n){

++++//+Is+number+between+1+and+5?
++++if($n>=1+&&+$n<=5)+return+"green";

++++//+Is+number+between+6+and+10?
++++if($n>=6+&&+$n<=10)+return+"orange";

++++//+Is+number+greater+than+11
++++if($n>11)+return+"red";

++++//+Return+default+(black)+for+all+other+numbers
++++return+"black";

}

?>

<span+style='color:<?=$color?>'>Text|code-block|syntax|javascript|1195380|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I'll use CSS colors and also highlight the fact that the number 11 does not map to any color according to your rules making most of the answers invalid :)

<pre><code>&lt;?php

$color=getColor(11);

function getColor($n){

 // Is number between 1 and 5?
 if($n&gt;=1 &amp;&amp; $n&lt;=5) return "green";

 // Is number between 6 and 10?
 if($n&gt;=6 &amp;&amp; $n&lt;=10) return "orange";

 // Is number greater than 11
 if($n&gt;11) return "red";

 // Return default (black) for all other numbers
 return "black";

}

?&gt;

&lt;span style='color:&lt;?=$color?&gt;'&gt;Text&lt;/span&gt;
</code></pre>

blocks|key|447293|text|一个简单的解决方案可能是这样做……|type|unstyled|depth|inlineStyleRanges|entityRanges|data|447294|if+($var+<+6)
++++$style="0F0";
else+if+($var+<+11)
++++$style="F50";
else
+++$style+=+"F00";

?><div+style="color:#<?php+echo+$style;+?>">blar</div>|code-block|syntax|javascript|447295|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

A simple solution might be to do something like this...

<pre><code>if ($var &lt; 6)
 $style="0F0";
else if ($var &lt; 11)
 $style="F50";
else
 $style = "F00";

?&gt;&lt;div style="color:#&lt;?php echo $style; ?&gt;"&gt;blar&lt;/div&gt;
</code></pre>

blocks|key|3265850|text|简单示例中的三元运算符。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3265851|++$color+=+($var+<+6)+?+'#FF8000'+:++(($var+<+10)+?+'#00FF00'+:+'#FF0000');|code-block|syntax|javascript|3265852|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Ternary operator for your simple example.

<pre><code> $color = ($var &lt; 6) ? '#FF8000' : (($var &lt; 10) ? '#00FF00' : '#FF0000');
</code></pre>

blocks|key|3265834|text|我会使用CSS类而不是内联样式颜色...让CSS工作...|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3265835|<?php
$var+=+5;
$class+=+(($var+<+6)+?+'greenclass'+:+(($var+<+11)+?+'orangeclass'+:+'redclass'+))
?>
<span+class="<?php+echo+$class?>">text</div>|code-block|syntax|javascript|3265836|如果这些答案都不是你所期望的，那么你到底想要实现什么？你能给我更多的信息吗？|3265837|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I would use CSS classes instead of inline styling the color... Let CSS work...

<pre><code>&lt;?php
$var = 5;
$class = (($var &lt; 6) ? 'greenclass' : (($var &lt; 11) ? 'orangeclass' : 'redclass' ))
?&gt;
&lt;span class="&lt;?php echo $class?&gt;"&gt;text&lt;/div&gt;
</code></pre>

If none of these answers are the one you expect, what exactly are you trying to accomplish? Can you give more info?

blocks|key|1857685|text|假设一个人使用范围，这是相当灵活的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1857686|function+getProperColor($range,+$value)
{
++++foreach($range+as+$key+=>+$color)
++++{
++++++++if+($value+<=+$key)
++++++++++++return+$color;
++++}
++++return+$color;
}

$colorRange+=+array(
++++5+=>+'green',
++++10+=>+'orange',
++++11+=>+'red'
);

for($i=-1;$i<16;$i%2B=2)
{
++++echo+"$i:"+.+getProperColor($colorRange,+$i)+.+"\n";
}|code-block|syntax|javascript|1857687|这将输出：|1857688|-1:green
1:green
3:green
5:green
7:orange
9:orange
11:red
13:red
15:red|1857689|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Assuming one works with ranges than this is quite flexible:

<pre><code>function getProperColor($range, $value)
{
 foreach($range as $key =&gt; $color)
 {
 if ($value &lt;= $key)
 return $color;
 }
 return $color;
}

$colorRange = array(
 5 =&gt; 'green',
 10 =&gt; 'orange',
 11 =&gt; 'red'
);

for($i=-1;$i&lt;16;$i+=2)
{
 echo "$i:" . getProperColor($colorRange, $i) . "\n";
}
</code></pre>

This will output:

<pre><code>-1:green
1:green
3:green
5:green
7:orange
9:orange
11:red
13:red
15:red
</code></pre>

blocks|key|3265903|text|<?php
$var='2';
?>
+<html>
++<body>
+++Hello+Welcome.I+am
+++++<?php+
++++++if($var>0+&&+$var<=5)
++++++++echo+'<p+style=color:Green;>';
++++++else+if($var>=6+&&+$var<=+10)
++++++++echo+'<p+style=color:orange;>';
++++++else
+++++++++echo+'<p+style=color:red;>';
?>
++++++++I+am+a+Developer.
+++++
+++++</body>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|3265904|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>&lt;?php
$var='2';
?&gt;
 &lt;html&gt;
 &lt;body&gt;
 &lt;p&gt;Hello Welcome.I am
 &lt;?php 
 if($var&gt;0 &amp;&amp; $var&lt;=5)
 echo '&lt;p style=color:Green;&gt;';
 else if($var&gt;=6 &amp;&amp; $var&lt;= 10)
 echo '&lt;p style=color:orange;&gt;';
 else
 echo '&lt;p style=color:red;&gt;';
?&gt;
 I am a Developer.
 &lt;/p&gt;
 &lt;/body&gt;
</code></pre>

blocks|key|447426|text|为什么不是开关柜呢？这样会更干净|type|unstyled|depth|inlineStyleRanges|entityRanges|data|447427|+++$color+=+"";
+++switch(true){
++++++case+($var+>+0+&&+$var+<=+5):
++++++++++++$color+=+'#00FF00';
++++++break;
++++++case+($var+>=+6+&&+$var+<=+10):
++++++++++++$color+=+'#00FF00';
++++++break;
++++++case+($var+>=+11):
++++++++++++$color+=+'#00FF00';
++++++break;
++++++default:
++++++++++++$color+=+'#000000';|code-block|syntax|javascript|447428|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

why not a switch case ? it would be cleaner this way

<pre><code> $color = "";
 switch(true){
 case ($var &gt; 0 &amp;&amp; $var &lt;= 5):
 $color = '#00FF00';
 break;
 case ($var &gt;= 6 &amp;&amp; $var &lt;= 10):
 $color = '#00FF00';
 break;
 case ($var &gt;= 11):
 $color = '#00FF00';
 break;
 default:
 $color = '#000000';
</code></pre>

blocks|key|1857492|text|$color="green";
$text="foo";
echo+wrapColor($color,+$text);

function+wrapColor($color,+$text){
return+"<span+style=color:$color>$text";
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1857493|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>$color="green";
$text="foo";
echo wrapColor($color, $text);

function wrapColor($color, $text){
return "&lt;span style=color:$color&gt;$text&lt;/span&gt;";
}
</code></pre>

What's the easiest way to change a text's color based on a variable?

For example: If $var is between 1-5, green. Between 6-10, Orange. Greater than 11, Red.

PHP: Change color of text based on $value

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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根据变量更改文本颜色的最简单方法是什么？例如:如果$var介于1-5之间，则为绿色。在6-10之间，橙色。大于11，红色。

问PHP:基于$value更改文本颜色
EN

回答 14

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问PHP:基于$value更改文本颜色EN

回答 14

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问PHP:基于$value更改文本颜色
EN