javascript - 如何检查php数组值是否在js数组中？

首先，我从values获取所有的php array：

<?php
  $user_id = get_current_user_id();
  $userPostsInternal = get_user_meta( $user_id, 'save_post_internal', TRUE );
  $userPostsExternal = get_user_meta( $user_id, 'save_post_external', TRUE )
?>

然后，我得到这些arrays并将其转换为JS array

var savedInternal = "<?php echo $userPostsInternal; ?>";
var savedExternal = "<?php echo $userPostsExternal; ?>";

savedInternal = savedInternal.split(',');
savedExternal = savedExternal.split(',');

然后，我需要检查当前id value是否在js array中，并进行相应的处理：

if($.inArray(this.id, savedInternal) !== -1) {
    console.log("yes");
} else {
    console.log("no");
}

如果我将以下内容放置在id正确的位置上，这是在鼠标悬停在元素上的情况，所以与this.id无关

console.log(this.id);

我得到128545，这是正确的。

完整代码：

google.maps.event.addListener(circle, 'mouseover', function(e) {

  <?php
    $user_id = get_current_user_id();
    $userPostsInternal = get_user_meta( $user_id, 'save_post_internal', TRUE );
    $userPostsExternal = get_user_meta( $user_id, 'save_post_external', TRUE )
  ?>

  var savedInternal = "<?php echo $userPostsInternal; ?>";
  var savedExternal = "<?php echo $userPostsExternal; ?>";

  savedInternal = savedInternal.split(',');
  savedExternal = savedExternal.split(',');

  $("#timeSearch").removeClass("fadeIn").addClass("fadeOut");
  $(".infoBox").removeClass("fadeOut").addClass("fadeIn");
  if(this.currSite == "curr" ) {
    var linkGo = this.linkToPost;
    var whatSite = this.currSite;
    if($.inArray(this.id, savedInternal) !== -1) {
      var contentString = '<div class="row infoBox"><div class="col"><p>' + this.site + '</p><hr><h5>'+this.title+'</h5><hr><p><button data-whatSite="'+whatSite+'" data-id="'+this.id+'" type="button" class="btn-site btn btn btn-outline-dark btn-block">Già nella box</button></p><hr><a class="d-block margin-top-20 btn btn-outline-dark btn-block" href="'+linkGo+'">Vedi contenuto</a></div></div>';
    } else {
      var contentString = '<div class="row infoBox"><div class="col"><p>' + this.site + '</p><hr><h5>'+this.title+'</h5><hr><p><button data-whatSite="'+whatSite+'" data-id="'+this.id+'" type="button" class="btn-site btn btn btn-dark btn-block">Salva nella box</button></p><hr><a class="d-block margin-top-20 btn btn-outline-dark btn-block" href="'+linkGo+'">Vedi contenuto</a></div></div>';
    }
  } else {
    var linkGo = linkExternal+this.linkToPost;
    var whatSite = this.currSite;
    if($.inArray(this.id, savedExternal) !== -1) {
      var contentString = '<div class="row infoBox"><div class="col"><p>' + this.site + '</p><hr><h5>'+this.title+'</h5><hr><p><button data-whatSite="'+whatSite+'" data-id="'+this.id+'" type="button" class="btn-site btn btn btn-outline-dark btn-block">Già nella box</button></p><hr><a class="d-block margin-top-20 btn btn-outline-dark btn-block" href="'+linkGo+'">Vedi contenuto</a></div></div>';
    } else {
      var contentString = '<div class="row infoBox"><div class="col"><p>' + this.site + '</p><hr><h5>'+this.title+'</h5><hr><p><button data-whatSite="'+whatSite+'" data-id="'+this.id+'" type="button" class="btn-site btn btn btn-dark btn-block">Salva nella box</button></p><hr><a class="d-block margin-top-20 btn btn-outline-dark btn-block" href="'+linkGo+'">Vedi contenuto</a></div></div>';
    }
  }
  infoWindow = new google.maps.InfoWindow({content: contentString});
  infoWindow.setPosition(this.getCenter());
  infoWindow.open(map);
  btnBoxSave(infoWindow, whatSite);
});

最佳答案

$.inArray(...)使用严格的比较。
从您发布的代码来看，数组似乎包含字符串（它们是使用.split(...)创建的，它返回字符串数组）和要检查的值（是否在数组中）（this.id）是一个数字。

要解决此问题，请使用：

$.inArray(this.id.toString(), savedInternal)和$.inArray(this.id.toString(), savedExternal)