illegal string offset php

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

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

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

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,

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

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

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 $

A string is series of characters.String access and modification by characterCharacters 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 $ str