In php, while (list ($ key, $ val) each ($ result) is used to obtain the array in detail. In php, while (list ($ key, $ val) each ($ result) reads the value of the $ result array and returns the value of the array to $ key and $ val cyclically. For
In php, while (list ($ key, $ val) each ($ result) reads the value of the $ result array and returns the value of the array to $ key and $ val cyclically. The sample code is as follows:
In php, while (list ($ key, $ val) = each ($ result) is used
Key callback function:Max (List,key=none)Max (range), Key=lambda x:x > 3) #4Explanation: key= (False,false,false,false,true,.. )The first item of the max value in key is 4 true, so return 4Max (' za ', ' bf ', Key=lambda x:x[0]) #zaExplanation: key=
In php, while (list ($ key, $ val) = each ($ result) is used to read the $ result array value and obtain the array content cyclically and assign the value to $ key, $ val.
Example
The Code is as follows:
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Echo "
List key points and then extend details if necessary
Recent interviews may require quick access to relevant information due to limited interview timeSometimes I want to ask candidate a question and look forward to several main points.But
In a project where struts2 is applied, the following error is returned when you click Submit label on a page:
TheRequested listKey 'role' cocould not be resolved as a collection/array/MAP/enumeration/iteratorType
Check the prompt. The error
$sql = ' SELECT DISTINCT (ontopid), gb.id as id,f.id as fid,g.id as gid,g.*,gb.*,f.* from Pk_groupbuy GB
Left join Pk_ontop as O on o.ontopid=gb.id
Left Join Pk_goods G on gb.goodsid=g.id and g.status=2 and G.invalid>unix_timestamp ()
Left join
String type operation
The string is the most basic type of Redis, and the string type is binary safe. This means that a Redis string can contain any data. For example, JPG images or serialized objects
$redis->set (' key ', ' TK ');
$redis->set ('
This article mainly introduces the PHP + Redis basic operation, has a certain reference value, now share to everyone, the need for friends can refer to
String type operation
The string is the most basic type of Redis, and the string type is binary
String type Operation
String is the most basic type of Redis, and the string type is binary safe. A string that means Redis can contain any data. such as JPG images or serialized objects.
$redis->set (' key ', ' TK ');
$redis->set (' number ', ' 1
/**string type Operation **/
# string is the most basic type of Redis, and the string type is binary safe.
# meaning that Redis string can contain any data, such as a JPG image or a serialized object.
$redis->set (' key ', ' TK ');
$redis->set ('
Redis's main data structure linked list Redis uses a C language that does not have a built-in data structure, so Redis has built its own linked list implementation. One of the underlying implementations of the list key is the linked list. A list key
First, KeyKey command Quick check:
Command
Description
Del
Delete the given one or more keys, the nonexistent key will be ignored, the return value: the number of deleted keys
DUMP
Serializes
First, KeyKey command Quick check:
Command
Description
Del
Delete the given one or more keys, the nonexistent key will be ignored, the return value: the number of deleted keys
DUMP
Serializes
First, KeyKey command Quick check:
Command
Description
Del
Delete the given one or more keys, the nonexistent key will be ignored, the return value: the number of deleted keys
DUMP
Serializes
First, KeyKey command Quick check:
Command
Description
Del
Delete the given one or more keys, the nonexistent key will be ignored, the return value: the number of deleted keys
DUMP
Serializes
First, KeyKey command Quick check:
Command
Description
Del
Delete the given one or more keys, the nonexistent key will be ignored, the return value: the number of deleted keys
DUMP
Serializes
First, KeyKey command Quick check:
Command
Description
Del
Delete the given one or more keys, the nonexistent key will be ignored, the return value: the number of deleted keys
DUMP
Serializes
memcached Installation and connectionStart with Docker: Docker run-p 11211:11211-d--name memcached memcachedTo connect using telnet: Telnet 10.141.4.25 11211Common Operations Store Command setSet key flags Exptime bytes [Noreply] Value instance: Set
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