chdb::get

(PECL chdb >= 0.1.0)

chdb::get — Gets the value associated with a key

说明

public string chdb::get ( string $key )

Gets the value associated with a key from a chdb database.

参数

key: The key for which to get the value.

返回值

Returns a string containing the value associated with the given key, or NULL if not found.

范例

Example #1 chdb::get() example

  <?php

$data  = array(
     'key1'  =>  'value1' ,
     'key2'  =>  'value2' ,
     // ...
 );
 chdb_create ( 'data.chdb' ,  $data );

 $chdb  = new  chdb ( 'data.chdb' );
 $value1  =  $chdb -> get ( 'key1' );
 $value2  =  $chdb -> get ( 'key2' );

echo  $value1 ,  PHP_EOL ;
echo  $value2 ,  PHP_EOL ;

 ?>

以上例程的输出类似于：

value1
value2