warning illegal string offset

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..

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

String manipulation in JavaScript I. Overview Strings are almost ubiquitous in JavaScript, and when you are working with the user's input data, when you read or set the properties of a DOM object, while manipulating the cookie, there are of course

A string is series of characters. String access and modification by character Characters within strings may accessed and modified by specifying the zero-based offset of the desired character The string using square array brackets, as in $str [42].

Note: PHP does not limit the length of the string. The only limit is PHP's available memory in the computer (the value of the Memory_limit variable in the php.ini file) There are 4 methods for qualifying string ranges: 1, single quotation marks; 2,

A string is series of characters. String access and modification by character Characters within strings may be accessed and modified by specifying the zero-based offset of the desired character after the string using square array brackets, as in $

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

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

Verification code question session_start (); // Number of random codes $ _ Rnd_code = 4; // Create a random code For ($ I = 0; $ I $ _ Nmsg. = dechex (mt_rand (0, 15 )); } // Save it in the session $ _ SESSION ['code'] =$ _ nmsg; // Set the

The character in the string in PHP can be searched and modified by a string starting with 0 and containing numbers in square brackets similar to the array structure, The character in the string in PHP can be searched and modified by a string