PHP数组和字符串的互转

数组转字符串 implode()

 

eg：

$category1 = implode("-",array("id" => "1000214","category" => "国内新闻"));
$category2 = implode("-",array("id" => "1000215","category" => "国际新闻"));
$category5 = implode("-",array("id" => "1000216","category" => "娱乐新闻"));

echo $category1.'<br>';
echo $category2.'<br>';
echo $category5.'<br>';

 

输出：

1000214-国内新闻
1000215-国际新闻
1000216-娱乐新闻

字符串转数组 explode()

 

eg：

print_r( explode("-",$category1) );

print_r( explode("-",$category2) );

print_r( explode("-",$category5) );

 

输出：

Array ( [0] => 1000214 [1] => 国内新闻 )
Array ( [0] => 1000215 [1] => 国际新闻 )
Array ( [0] => 1000216 [1] => 娱乐新闻 )