php illegal offset type

PHP uses simplexml to solve the illegal offset type Problem Simplexml_load_string/simplexml_load_file of PHP is very convenient. You can easily convert XML Parse into a PHP Object, and then you can process the information as needed ~

A string is composed of a series of characters, each of which is equivalent to a byte. This means that PHP only supports the 256 character set and therefore does not support Unicode. For details, see the description of the string type. Note: string..

Document directory I. Introduction to types Ii. Boolean Iii. Integer type Iv. String 5. Array PHP supports eight primitive types, including: Four scalar types: Boolean, integer, float, and string ); Two composite types: array and object

What kind of network protocol does 1.nginx use? Nginx is the application layer I think from the bottom up, the transport layer uses the TCP/IP application layer for HTTP FastCGI is responsible for the scheduling process 2. ? echo ' Hello

PHP supports 8 types of raw data. Four scalar types: Boolean (Boolean), Integer (integer), float (floating-point, also called Double), String (string), two composite types: Array (array), object, Finally, there are two special types: resource

Note: PHP does not limit the length of string. The only limit is the available memory of PHP in the computer (the value of the Memory_limit variable in the php.ini file) There are 4 ways to qualify string ranges: 1, single quotation mark; 2, double

In PHP, the array can hold the value can be any PHP type, if the given value does not specify the key name, then the current largest integer index value, and the new key name is the value plus one, this is the PHP array There are three types of

In a word, the object is used as the key of the array. For example, the following code triggers this warning: The code is as follows:Copy code $ Arr = array ();   Class   {   }   $ O = new;   Echo $ arr [$ o]; Specifically, I triggered this

A string of strings consists of a series of characters, each of which is equal to one byte. This means that PHP can only support a 256 character set and therefore does not support Unicode. See detailed string types. The note:string can reach 2GB

Note: PHP does not limit the length of string. The only limit is the available memory of PHP on the computer (value of the memory_limit variable in the php. ini file)There are four methods to limit the string range:1. Single quotes;2. Double