如何使用JavaScript / jQuery编辑PHP变量？ [英] How do I edit PHP variable with JavaScript/jQuery?

问题描述

我想根据复选框元素 .avflipswitch 的当前状态更新PHP变量 $ LinkOpen 。

根据 .avflipswitch 复选框状态，我想切换我的PHP变量的值 $ LinkOpen 在'_ blank'和'_ self'之间，所以我可以推我的 Google CSE 链接目标属性的价值。

---

到目前为止我尝试了什么：

  $（'。avflipswitch'）。on（change，function（e）{
 if（this。已检查）{
 functionOne（<？php $ LinkOpen ='_ blank';？>）; 
} 
 else {
 functionTwo（<？php $ LinkOpen =' _self';？>）; 
} 
}）; 
 
< gcse：searchresults-only linktarget =<？php echo $ LinkOpen;？>>< / gcse：searchresults-only> 
  

解决方案

您可以使用<将值推送到cookie strong> JavaScript 或 jQuery ，然后让 PHP 从该Cookie中检索此值：

jQuery + PHP：

  / * jQuery * / $（'。avflipswitch '）。on（change，function（）{let blankTar =_ blank; let selfTar =_ self; if（this.checked）{document.cookie =target =+ blankTar; window.location.reload （）;} else {document.cookie =target =+ selfTar; window.location.reload（）;}}）; / * PHP * /< gcse：searchresults-only linktarget =<？php echo $ _COOKIE ['target'];？>>< / gcse：searchresults-only>  

---

JavaScript + PHP：

< pre class =snippet-code-js lang-js prettyprint-override> / * JavaScript * / const switch = document.querySelector（。avflipswitch）[0]; switch.addEventListener（change，function（）{let blankTar =_ blank; let selfTar =_ self; if（this.checked）{document.cookie =target =+ blankTar; window.location.reload（ ）;} else {document.cookie =target =+ selfTar; window.location.reload（）;}} / * PHP * /< gcse：searchresults-only linktarget =<？php echo $ _COOKIE [' target'];？>>< / gcse：searchresults-only>

I want to update a PHP variable $LinkOpen based on the current state of a checkbox element .avflipswitch.

Based on the .avflipswitch checkbox state, I want to toggle the value of my PHP variable $LinkOpen between '_blank' and '_self' so I can push that value to my Google CSE link target attribute.

---

What I have tried so far:

 $('.avflipswitch').on("change", function (e){ 
   if(this.checked){
     functionOne(<?php $LinkOpen = '_blank';?>);
   }
   else{
     functionTwo(<?php $LinkOpen = '_self';?>);
   }
});

<gcse:searchresults-only linktarget="<?php echo $LinkOpen;?>"></gcse:searchresults-only>

解决方案

You can just push the value to a cookie using JavaScript or jQuery and then let PHP retrieve the value from that cookie like this:

jQuery + PHP:

/* jQuery */

$('.avflipswitch').on("change", function (){
  let blankTar = "_blank";
  let selfTar = "_self";

  if(this.checked){
    document.cookie = "target =" + blankTar;
    window.location.reload();
  }
  else{
    document.cookie = "target =" + selfTar;
    window.location.reload();
  }
});

/* PHP */

<gcse:searchresults-only linktarget="<?php echo $_COOKIE['target']; ?>"></gcse:searchresults-only>

---

JavaScript + PHP:

/* JavaScript */
const switch = document.querySelector(".avflipswitch")[0];
    
switch.addEventListener("change", function(){
  let blankTar = "_blank";
  let selfTar = "_self";
      
  if(this.checked){
    document.cookie = "target =" + blankTar;
    window.location.reload();
  }
  else{
    document.cookie = "target =" + selfTar;
    window.location.reload();
  }
}

/* PHP */

<gcse:searchresults-only linktarget="<?php echo $_COOKIE['target']; ?>"></gcse:searchresults-only>

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