Question

我想在给定字符串中突出显示带有背景颜色的多个文本。

我正在使用此代码：

<style>
.highlight{
background: #CEDAEB;
}
</style>
<?
$str = 'Led Plant Lamp , nikeshoes,  hid xenon lamps, torchs, xenon lamp, mp3, mp4, sola, glass';
$keywords = array("k span","htc","nike","tma","ass","ck","rei","bov");
$style = 'highlight';
foreach($keywords as $keyword)
{
    $replacement = "<span class='".$style."'>".$keyword."</span>";
    $str = str_ireplace($keyword, $replacement, $str);
}
return $str;
?>

Output:Led Plant Lamp , ass='highlight'>nikeshoes,  hid xenon lamps, torchs, xenon lamp, mp3, mp4, sola, glass

str_ireplace函数用span类替换关键字ass。请帮助我在这段代码中错误的地方

Answer 1

试试这个：

<style>
.highlight{
background: #CEDAEB;
}
</style>
<?
$str = 'Led Plant Lamp , nikeshoes,  hid xenon lamps, torchs, xenon lamp, mp3, mp4, sola, glass';
$keywords = array("k span","htc","nike","tma","ass","ck","rei","bov");
$style = 'highlight';
$arr1 = array();
$input = $str;
$str = explode(" ",$str);
foreach($str as $index=>$strings)
{
    for($i=0; $i<count($keywords); $i++)
    {
        if (stristr($strings, $keywords[$i]) !== false){                
            if(!isset($arr1[$index]))
            {
                $str_first_position = stripos($strings,$keywords[$i]);
                $str_last_position = strlen($keywords[$i])-1 + $str_first_position;
                $str_first_char = substr($strings,0,$str_first_position);
                $str_last_char = substr($strings,$str_last_position+1,strlen($strings));
                $arr1[$index] = $str_first_char."<span class='".$style."'>".$keywords[$i]."</span>".$str_last_char;
            }
            break;
        }
    }
}
$arr2 = $arr1+$str;
ksort($arr2);
return implode(" ",$arr2);
?>

Answer 2

试试这个：

<style>
.highlight{
    background: #CEDAEB;
}
</style>
<?php
$str = "Led Plant Lamp , nikeshoes,  hid xenon lamps, torchs, xenon lamp, mp3, mp4, sola, glass";
$keywords = array("ass", "k span", "htc", "nike","tma","ck","rei","bov");
$style = 'highlight';
foreach($keywords as $keyword)
{
    $replacement = "<span class='highlight'>".$keyword."</span>";
    $str = str_ireplace($keyword, $replacement, $str);
}
var_dump($str);
?>

在给定字符串中突出显示带有颜色的多个关键字

2 个答案: