Heim >Backend-Entwicklung >PHP-Tutorial >Die Verwendung von php_encode für ein PHP-Array und die anschließende Verwendung von JSON.parse zum Konvertieren in ein JS-Objekt führt zu einem Fehler (zuvor war einer der Werte im Array ein JSON-String).
数组:
<code> Array ( [0] => Array ( [productid] => 2 [cateid] => 4 [title] => 衣 [descr] => 吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖 [num] => 197 [price] => 888.00 [cover] => 7xpizy.com1.z0.glb.clouddn.com/58087fa893aa7 [pics] => {"58087faa67f8b":"7xpizy.com1.z0.glb.clouddn.com\/58087faa67f8b"} [issale] => 1 [saleprice] => 799.00 [ishot] => 1 [istui] => 1 [ison] => 1 [createtime] => 0 ) )</code>
json :
<code class="json">[{"productid":"2","cateid":"4","title":"\u8863","descr":"\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416","num":"197","price":"888.00","cover":"7xpizy.com1.z0.glb.clouddn.com\/58087fa893aa7","pics":"{\"58087faa67f8b\":\"7xpizy.com1.z0.glb.clouddn.com\\\/58087faa67f8b\"}","issale":"1","saleprice":"799.00","ishot":"1","istui":"0","ison":"1","createtime":"0"}]</code>
数组中的 pics 本来就是json了,然后 json_encode
后在js中 JSON.parse
会报错:
<code>Unexpected number in JSON at position 169</code>
数组:
<code> Array ( [0] => Array ( [productid] => 2 [cateid] => 4 [title] => 衣 [descr] => 吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖 [num] => 197 [price] => 888.00 [cover] => 7xpizy.com1.z0.glb.clouddn.com/58087fa893aa7 [pics] => {"58087faa67f8b":"7xpizy.com1.z0.glb.clouddn.com\/58087faa67f8b"} [issale] => 1 [saleprice] => 799.00 [ishot] => 1 [istui] => 1 [ison] => 1 [createtime] => 0 ) )</code>
json :
<code class="json">[{"productid":"2","cateid":"4","title":"\u8863","descr":"\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416","num":"197","price":"888.00","cover":"7xpizy.com1.z0.glb.clouddn.com\/58087fa893aa7","pics":"{\"58087faa67f8b\":\"7xpizy.com1.z0.glb.clouddn.com\\\/58087faa67f8b\"}","issale":"1","saleprice":"799.00","ishot":"1","istui":"0","ison":"1","createtime":"0"}]</code>
数组中的 pics 本来就是json了,然后 json_encode
后在js中 JSON.parse
会报错:
<code>Unexpected number in JSON at position 169</code>
对原数组进行处理,json部分转成数组
<code>$arr = Array(Array ("productid" => 2, "cateid" => 4, "title" => "衣", "descr" => "吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖", "num" => 197, "price" => 888.00, "cover" => "7xpizy.com1.z0.glb.clouddn.com/58087fa893aa7", "pics" => '{"58087faa67f8b":"7xpizy.com1.z0.glb.clouddn.com\/58087faa67f8b"}', "issale" => 1, "saleprice" => 799.00, "ishot" => 1, "istui" => 1, "ison" => 1, "createtime" => 0 ) ); foreach($arr as $k=>$v){ $arr[$k]['pics'] = array(json_decode($arr[$k]['pics'],true)); } echo json_encode($arr);</code>
<code>[{"productid":2,"cateid":4,"title":"\u8863","descr":"\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416\u5416","num":197,"price":888,"cover":"7xpizy.com1.z0.glb.clouddn.com\/58087fa893aa7","pics":[{"58087faa67f8b":"7xpizy.com1.z0.glb.clouddn.com\/58087faa67f8b"}],"issale":1,"saleprice":799,"ishot":1,"istui":1,"ison":1,"createtime":0}]</code>
<code class="php">$arr = [[ 'productid' => 2, 'cateid' => 4, 'title' => '衣', 'descr' => '吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖吖', 'num' => 197, 'price' => 888.00, 'cover' => '7xpizy.com1.z0.glb.clouddn.com/58087fa893aa7', 'pics' => '{"58087faa67f8b":"7xpizy.com1.z0.glb.clouddn.com\/58087faa67f8b"}', 'issale' => 1, 'saleprice' => 799.00, 'ishot' => 1, 'istui' => 1, 'ison' => 1, 'createtime' => 0, ]]; $arr[0]['pics'] = json_decode($arr[0]['pics'],true); $json=json_encode($arr); //以下为js 正常输出 var json='<?php echo $json;?>'; console.log(JSON.parse(json));</code>