Question

我想用一些函数替换文本中的项目。例如，我想从WYSIWYG中放置滑块我写的是像这样的{SLIDER_8879}，其中SLIDER是函数类型，8879是参数（例如文件夹）。

例如：

<?php
    function xxx($fname, $value){
echo"<span style='color:orange;'>$fname|$value this is CAROUSEL</span> ";   
}

function callback ($match) {
    if ($match[2] === "SLIDER"){
        return "<span style='color:red'>This is a slider</span>";
    }else if($match[2] === "POLL"){
        return rand(8888888888, 8888888888888888888888);            
    }else if($match[2] === "CAROUSEL"){
        xxx($match[2], $match[4]);
    }else{
        echo"<span style='color:blue'>ESIM INCH!</span>";   
    }
}

$body = "{{SLIDER_fff}} sdfasdfas dfasd {{POLL_8879}} dsgasdgasdgds {{CAROUSEL_888}} sdffasd f asd f a {{SLIDER_8879-folder}} dfgdf g dsfsfgfg d  fdfgd {{BIBIN_folder}} sdfsdf";
$pattern = "/({{2})([A-Z]+)(_{1})([a-zA-Z0-9_\-]+)(}{2})/";
$body = preg_replace_callback($pattern, "callback", $body);

echo $body;
?>

我得到了这个订单：

CAROUSEL | 888这是CAROUSEL ESIM INCH！这是一个滑块sdfasdfas dfasd 123055895 dsgasdgasdgds sdffasd f asd f a这是一个滑块dfgdf g dsfsfgfg d fdfgd sdfsdf

想拥有正确的替换订单：

这是一个滑块sdfasdfas dfasd 123055895 dsgasdgasdgds CAROUSEL | 888这是CAROUSEL sdffasd f asd f a这是一个滑块dfgdf g dsfsfgfg d fdfgd ESIM INCH！ sdfsdf

Answer 1

回调应该返回替换字符串。

也许这个更新的代码正是您所寻找的：

<?php
function xxx($fname, $value){
    return "<span style='color:orange;'>$fname|$value this is CAROUSEL</span> ";
}

function callback ($match) {
    if ($match[2] === "SLIDER"){
        return "<span style='color:red'>This is a slider</span>";
    }else if($match[2] === "POLL"){
        return rand(8888888888, 8888888888888888888888);
    }else if($match[2] === "CAROUSEL"){
        return xxx($match[2], $match[4]);
    }else{
        return "<span style='color:blue'>ESIM INCH!</span>";
    }
}

$body = "{{SLIDER_fff}} sdfasdfas dfasd {{POLL_8879}} dsgasdgasdgds {{CAROUSEL_888}} sdffasd f asd f a {{SLIDER_8879-folder}} dfgdf g dsfsfgfg d  fdfgd {{BIBIN_folder}} sdfsdf";
$pattern = "/({{2})([A-Z]+)(_{1})([a-zA-Z0-9_\-]+)(}{2})/";
$body = preg_replace_callback($pattern, "callback", $body);

echo $body;
?>

多个ob_start（）和ob_get_clean（）

1 个答案: