我在使用PHP获取JSON数据时遇到了问题。下面是我的代码和JSON文件。问题是它只获取JSON的第一个产品，并且不会遍历整个循环。
我知道必须有一点错误，因为它只取得第一行。
<html>
<head>
<title>Test</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<style>
.box
{
width:750px;
padding:20px;
background-color:#fff;
border:1px solid #ccc;
border-radius:5px;
margin-top:100px;
}
</style>
</head>
<body>
<div class="container box">
<h3 align="center">Import JSON File Data into Postgresql</h3><br />
<?php
$host = "localhost"; // db ip
$user = "postgres"; // db username (mention your db password here)
$pass = "postgres";// database password
$db = "json_order"; // db
// Connecting to my database
$connect = pg_connect("host=$host dbname=$db user=$user password=$pass") or die ("Could not connect to server\n");
//$connect = mysqli_connect("localhost", "root", "", "employee"); //Connect PHP to MySQL Database
$query = '';
$table_data = '';
$filename = "testdata.json";
$data = file_get_contents($filename); //Read the JSON file in PHP
$array = json_decode($data, true); //Convert JSON String into PHP Array
$i=0;
foreach($array as $row) //Extract the Array Values by using Foreach Loop
{
// Make Multiple Insert Query
$query .= "INSERT INTO order_insert(id,title) VALUES ('".$row[$i]["id"]."', '".$row[$i]["title"]."')"; // Make Multiple Insert Query
$table_data .= '
<tr>
<td>'.$row[$i]["id"].'</td>
<td>'.$row[$i]["title"].'</td>
</tr>
';
$i++;
}
if(pg_query($connect, $query)) //Run Mutliple Insert Query
{
echo '<h3>Imported JSON Data</h3><br />';
echo '
<table class="table table-bordered">
<tr>
<th width="45%">ID</th>
<th width="10%">Title</th>
</tr>
';
echo $table_data;
echo '</table>';
}
?>
<br />
</div>
</body>
</html>
/////////////////// Json File（testdata.json）/////////////////
{
"products":[
{
"id":4790584326,
"title":"Black Sand"
},
{
"id":4790581318,
"title":"Black Sea"
},
{
"id":4790599046,
"title":"BLOSSOM MANAMI (02-A)"
},
{
"id":4790598534,
"title":"BLOSSOM MANAMI (02-B)"
},
{
"id":4790587462,
"title":"Blue Breeze"
},
{
"id":4790600326,
"title":"Bow Bells"
},
{
"id":1008999299,
"title":"Copy of Product 1"
},
{
"id":4790601542,
"title":"Coral Charm"
},
{
"id":4790588550,
"title":"Coral spectrum"
},
{
"id":4790589446,
"title":"Dazzling Sea"
},
{
"id":4790600646,
"title":"Emerald Woo"
},
{
"id":4790592518,
"title":"Enchanted Blossom"
},
{
"id":4790595206,
"title":"FLORAL SAGA (05-A)"
},
{
"id":4790595846,
"title":"FLORAL SAGA (05-B)"
},
{
"id":4790596678,
"title":"FLORENTINA (08-A)"
},
{
"id":4790596422,
"title":"FLORENTINA (08-B)"
},
{
"id":4790593030,
"title":"IMPERIAL BOUQUET (06-A)"
},
{
"id":4790594630,
"title":"IMPERIAL BOUQUET (06-B)"
},
{
"id":4790598150,
"title":"IRIS INVERSE (03-A)"
},
{
"id":4790597958,
"title":"IRIS INVERSE (03-B)"
},
{
"id":4790585606,
"title":"Mesmerised Ocean"
},
{
"id":6517629254,
"title":"Mesmerising Bouquet"
},
{
"id":4790591046,
"title":"Midnight Grandeur"
},
{
"id":4790599750,
"title":"MORNING FLOSS (01-A)"
},
{
"id":4790599366,
"title":"MORNING FLOSS (01-B)"
},
{
"id":4790584774,
"title":"Mother of pearls"
},
{
"id":4790590662,
"title":"Nautical Overboard"
},
{
"id":4790583558,
"title":"Ocean Punch"
},
{
"id":4790584006,
"title":"Opal Muse"
},
{
"id":9229155654,
"title":"p1"
},
{
"id":9256445510,
"title":"p1"
},
{
"id":1005959875,
"title":"Product 1"
},
{
"id":4790592006,
"title":"Radiant Rose"
},
{
"id":4790582278,
"title":"Rogue Breeze"
},
{
"id":4790597702,
"title":"ROSABELLA (04-A)"
},
{
"id":4790597062,
"title":"ROSABELLA (04-B)"
},
{
"id":4790581830,
"title":"Sea News"
},
{
"id":4790586438,
"title":"Seaweed lust"
},
{
"id":4790600966,
"title":"Spiritual Marvel"
},
{
"id":8994515974,
"title":"Stitch My Fabric"
},
{
"id":1949467075,
"title":"test4"
},
{
"id":1949486851,
"title":"test4"
},
{
"id":4790582854,
"title":"Ultramarine"
},
{
"id":4790591558,
"title":"Viva Glam"
},
{
"id":4790594118,
"title":"WHIMSICAL VINES (07-A)"
},
{
"id":4790593478,
"title":"WHIMSICAL VINES (07-B)"
}
]
}
答案 0 :(得分：1)
由于您使用foreach($array as $row)来循环JSON数据，因此无需使用$i变量，因为json对象的eache元素可通过$row变量访问
编辑：
此外，多插入查询应采用以下格式：
INSERT INTO table(column1, column2) VALUES (value1, value2), ( Value1, Value2 )....
所以将代码更改为：
$query = "INSERT INTO order_insert(id,title) VALUES ";
foreach($array['products'] as $row) //Extract the Array Values by using Foreach Loop
{
// Make Multiple Insert Query
$query .= " ('".$row["id"]."', '".$row["title"]."'), "; // Make Multiple Insert Query
$table_data .= '
<tr>
<td>'.$row["id"].'</td>
<td>'.$row["title"].'</td>
</tr>
';
}
第二次编辑：
最终查询最后会有一个,，所以要删除你应该这样做：
$theQuery = rtrim($theQuery,", ");
这是一个有效的Fiddle。
答案 1 :(得分：1)
你可以尝试一下。
<html>
<head>
<title>Test</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<style>
.box
{
width:750px;
padding:20px;
background-color:#fff;
border:1px solid #ccc;
border-radius:5px;
margin-top:100px;
}
</style>
</head>
<body>
<div class="container box">
<h3 align="center">Import JSON File Data into Postgresql</h3><br />
<?php
$host = "localhost"; // db ip
$user = "postgres"; // db username (mention your db password here)
$pass = "postgres";// database password
$db = "json_order"; // db
// Connecting to my database
$connect = pg_connect("host=$host dbname=$db user=$user password=$pass") or die ("Could not connect to server\n");
//$connect = mysqli_connect("localhost", "root", "", "employee"); //Connect PHP to MySQL Database
$query = '';
$table_data = '';
$filename = "testdata.json";
$data = file_get_contents($filename); //Read the JSON file in PHP
$array = json_decode($data, true); //Convert JSON String into PHP Array
$i=0;
foreach($array['products'] as $row) //Extract the Array Values by using Foreach Loop
{
// Make Multiple Insert Query
$query .= "INSERT INTO order_insert(id,title) VALUES ('".$row["id"]."', '".$row["title"]."')"; // Make Multiple Insert Query
$table_data .= '
<tr>
<td>'.$row["id"].'</td>
<td>'.$row["title"].'</td>
</tr>
';
$i++;
}
if(pg_query($connect, $query)) //Run Mutliple Insert Query
{
echo '<h3>Imported JSON Data</h3><br />';
echo '
<table class="table table-bordered">
<tr>
<th width="45%">ID</th>
<th width="10%">Title</th>
</tr>
';
echo $table_data;
echo '</table>';
}
?>
<br />
</div>
</body>
</html>
答案 2 :(得分：0)
使用此
foreach($array->products as $row) //Extract the Array Values by using Foreach Loop
{
// Make Multiple Insert Query
$query .= "INSERT INTO order_insert(id,title) VALUES ('".$row[$i]["id"]."', '".$row[$i]["title"]."')"; // Make Multiple Insert Query
$table_data .= '
<tr>
<td>'.$row->id.'</td>
<td>'.$row->title.'</td>
</tr>
';
}
答案 3 :(得分：0)
你需要遍历产品数组
$i=0; //remove no need
foreach($array['products'] as $row) //change to $array['products']
{
// Make Multiple Insert Query
$query .= "INSERT INTO order_insert(id,title) VALUES ('".$row["id"]."', '".$row["title"]."')"; // Make Multiple Insert Query
$table_data .= '
<tr>
<td>'.$row["id"].'</td>
<td>'.$row["title"].'</td>
</tr>
';
$i++;
}
答案 4 :(得分：0)
错误在于您正在访问对象，而不是数组
所以它只需将其作为$row->id和$row->title访问它
并且该对象是嵌套的（对象的对象）
因此双foreach循环
这是一个没有数据库部分的显示工作code
这是一个基于您的代码的工作代码，我只是更改了值演示文稿：
$data='{
"products":[
{
"id":4790597958,
"title":"IRIS INVERSE (03-B)"
},
{
"id":4790585606,
"title":"Mesmerised Ocean"
},
{
"id":6517629254,
"title":"Mesmerising Bouquet"
}
]
}';
echo "<pre>";
$array = json_decode($data); //Convert JSON String into PHP Array
foreach($array as $value) //Extract the Array Values by using Foreach Loop
{
foreach($value as $row){
$query .= "INSERT INTO order_insert(id,title) VALUES ('".$row->id."', '".$row->title."'), "; // Make Multiple Insert Query
$table_data .= '
<tr>
<td>'.$row->id.'</td>
<td>'.$row->title.'</td>
</tr>
';
}
}