我将这些字符串存储在变量：
中 // This is the decoded text from your database:
$dbStrings = '
<div class="container">
<div class="row">
<div class="col-xs-12 col-sm-7 col-md-7 col-lg-7 Headerlogo">
<a href="index.html">
{{ type=Img, value=logo1.png, class=logo, alt=studio }}
</a>
</div>
<!-- Edited header Starts -->
<div class="col-xs-12 col-sm-5 col-md-5 col-lg-5 headerSocial hidden-xs">
{{ type=Img, value=logo2.png, class=logo, alt=studio }}
<div class="socialfollow">
{{ type=Img, value=logo3.png, class=logo, alt=studio }}
<a href="#" class="facebook"><i class="icomoon-facebook Three-Dee"></i></a>
<a href="#" class="dribble"><i class="icomoon-dribbble Three-Dee"></i></a>
<a href="#" class="twitter"><i class="icomoon-twitter Three-Dee"></i></a>
<a href="#" class="google"><i class="icomoon-google Three-Dee"></i></a>
<a href="#" class="linkedin"><i class="icomoon-linkedin Three-Dee"></i></a>
</div>
</div>
<!-- Edited header Ends -->
</div>
</div>';
我用处理它
// First find the special code by finding any instance of {{ data1=data1, data2=data2 }} from the strings
preg_match_all("/{{ (.*?) }}/", $dbStrings, $matches);
//if found Note $matches[0]s are the curly brackets to be replaced according to the keys of $matches[1] (that is every instance of {{ data1=data1, data2=data2 }} )
// $matches[1]s are the data strings to get the arguments from (that is $matches[0]s without the curly brackets i.e data1=data1, data2=data2)
// use foreach so that each of $matches[1] will have their key
foreach ($matches[1] AS $key => $widgets)
{
// Explode the value of each of $matches[1] (which are now $widgets with key) with comma to have params
$params = explode(',', $widgets);
// use for each on $params so that each param inside the widgets will be able to have its key and value
foreach ($params AS $param)
{
// Assign the explosion of each param with =
$attr = explode('=', trim($param));
// create a variable array called $arg which has its key as each of the attr[0] and its value as each of the corresponding attr[1]
$arg[$attr[0]] = $attr[1];
}
// Now lets get to the replacement
// if the type is image
if(strtoupper(trim($arg['type'])) == 'IMG'){
$value = isset($arg['value']) ? $arg['value'] : "";
$id = isset($arg['id']) ? $arg['id'] : "";
$class = isset($arg['class']) ? $arg['class'] : "";
$width = isset($arg['width']) ? $arg['width'] : "";
$height = isset($arg['height']) ? $arg['height'] : "";
$alt = isset($arg['alt']) ? $arg['alt'] : "";
$title = isset($arg['title']) ? $arg['title'] : "";
$align = isset($arg['align']) ? $arg['align'] : "";
// Get the arrays of parameters according to Helper::addImg
$array = array('id'=>$id,'class'=>$class,'width'=>$width, 'height'=>$height, 'alt'=>$alt,'title'=>$title,'align'=>$align);
// Then replace the above code with the values
echo str_replace($matches[0][$key], Helper::addImg($value, $array), $dbStrings);
}
}
echo $dbStrings;
基本上我想要的是用
替换大括号的每个实例（我不知道里面参数的值）Helper::addImg("value", array('class'=>'class','alt'=>'alt'));
现在它只替换了许多花括号中的一个 请帮忙 感谢
答案 0 :(得分：0)
使用<?php
class Helper {
function addImg($value,$array) {
return '__FAKE__'.var_export($value,true).'|'.var_export($array,true).'__FAKE__';
}
}
// This is the decoded text from your database:
$dbStrings = '
<div class="container">
<div class="row">
<div class="col-xs-12 col-sm-7 col-md-7 col-lg-7 Headerlogo">
<a href="index.html">
{{ type=Img, value=logo1.png, class=logo, alt=studio }}
</a>
</div>
<!-- Edited header Starts -->
<div class="col-xs-12 col-sm-5 col-md-5 col-lg-5 headerSocial hidden-xs">
{{ type=Img, value=logo2.png, class=logo, alt=studio }}
<div class="socialfollow">
{{ type=Img, value=logo3.png, class=logo, alt=studio }}
<a href="#" class="facebook"><i class="icomoon-facebook Three-Dee"></i></a>
<a href="#" class="dribble"><i class="icomoon-dribbble Three-Dee"></i></a>
<a href="#" class="twitter"><i class="icomoon-twitter Three-Dee"></i></a>
<a href="#" class="google"><i class="icomoon-google Three-Dee"></i></a>
<a href="#" class="linkedin"><i class="icomoon-linkedin Three-Dee"></i></a>
</div>
</div>
<!-- Edited header Ends -->
</div>
</div>';
$result = preg_replace_callback("/{{ (.*?) }}/",function ($match) {
var_export($match);
$params = explode(',', $match[1]);
$arg = [];
// use for each on $params so that each param inside the widgets will be able to have its key and value
foreach ($params AS $param)
{
// Assign the explosion of each param with =
$attr = explode('=', trim($param));
// create a variable array called $arg which has its key as each of the attr[0] and its value as each of the corresponding attr[1]
$arg[$attr[0]] = $attr[1];
}
// Now lets get to the replacement
// if the type is image
if(strtoupper(trim($arg['type'])) == 'IMG'){
$value = isset($arg['value']) ? $arg['value'] : "";
$id = isset($arg['id']) ? $arg['id'] : "";
$class = isset($arg['class']) ? $arg['class'] : "";
$width = isset($arg['width']) ? $arg['width'] : "";
$height = isset($arg['height']) ? $arg['height'] : "";
$alt = isset($arg['alt']) ? $arg['alt'] : "";
$title = isset($arg['title']) ? $arg['title'] : "";
$align = isset($arg['align']) ? $arg['align'] : "";
// Get the arrays of parameters according to Helper::addImg
$array = array('id'=>$id,'class'=>$class,'width'=>$width, 'height'=>$height, 'alt'=>$alt,'title'=>$title,'align'=>$align);
// Then replace the above code with the values
return Helper::addImg($value, $array);
}
else {
return '-Unhandled-:'.$match[0].'-Unhandled-';
}
},$dbStrings);
echo '------------------- Output ----------------------';
echo $result;
：
@receiver(pre_save, sender=JuicerBaseSettings)
def check_no_conflicting_juicer(sender, instance, *args, **kwargs):
# If another JuicerBaseSettings object exists a ValidationError will be raised
if JuicerBaseSettings.objects.exclude(pk=instance.pk).exists():
raise ValidationError('A JuiceBaseSettings object already exists')