php uninitialized string offset

The string offset is not set. PHPcode $ str1 & quot; nojobnoaddress & quot; functionMystrrev ($ str1) {$ newstr & quot; $ lenstrlen ($ str1); for ($ I $ len; $ I & gt; the string offset is not set. PHP code $ Str1 = "no job no address";

The string offset is not set. PHPcode $ str1 = & quot; nojobnoaddress & quot; functionMystrrev ($ str1) {$ newstr = & quot; $ len = strlen string offset is not set. PHP code $ Str1 = "no job no address"; function Mystrrev ($ str1) {$

One, CGI mode installation security Second, the Apache module to install security When PHP is installed as an Apache module, it inherits the privileges of the Apache user (usually "nobody"). This has some impact on security and authentication. For

As a powerful language, PHP can be installed in either a module or CGI. its interpreter can access files, run commands, and create network connections on the server. These functions may add many insecure factors to the server. you must install and

Evaluate the compatibility with the des encryption and decryption functions or classes of PHP5.5 and 5.6 Key = $ key; if ($ iv = 0) {$ this-> iv = $ key;} else {$ this-> iv = $ iv; // mcrypt_create_iv (encrypt (MCRYPT_DES, decrypt),

;;;;;;;;;;;;;;;;;;;; Resource restrictions;;;;;;;;;;;;;;;;;;;;; Maximum number of seconds for each script to be executedMax_execution_time = 30; The maximum time for each script to analyze the request dataMax_input_time = 60; Maximum input variable

I want to teach you how to use php to call the database output. The purpose is to make a selection range, then query the database through these ranges, and format the output results. However, if the output results are correct, I am confused for a

I want to teach you how to use php to call the database output. The purpose is to make a selection range, then query the database through these ranges, and format the output results. However, if the output results are correct, I am confused for a

I want to teach you how to use php to call the database output. The purpose is to make a selection range, then query the database through these ranges, and format the output results. However, if the output results are correct, I am confused for a

Common PHP vulnerabilities: Injection Vulnerability injection brings controllable user variables into database operations and changes the original SQL intention. For example, in the logic of registering a user, when detecting whether the user name