php increment variable

Answer the question in the previous section first. 01 02 $foo= 10; 03 $bar= 20; 04   05

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I saw an interview question today, which involves a very elementary question, as shown below:   Write the output result of the php segment: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> $ Count = 5

The mysteries of the auto-increment and auto-increment operations in PHP. First, let's take a look at the questions about the auto increment and auto increment operations in PHP: $ a1; $ B $ a; if ($ B $ a ++) echotrue; elseechofalse; first, creates

"PHP" MySQL gets the primary key for inserting data (self-increment id), MySQL primary key To prevent primary key collisions, the self-increment (auto_increment) field is often used when designing db. So before inserting the data, we often don't

The mysteries of auto-increment and auto-increment operations in PHP First, let's take a look at the interview question: $ A = 1; $ B = & $ a; if ($ B = $ a ++) echo "true"; else echo "false "; First, create a variable $ a and set the value to 1

PHP auto-incrementing write the output result of the php segment: The answer is: 501. It involves two knowledge points: 1. php variable scope; 2. Auto-increment/auto-increment variables; The interviewer understands the scope of "php

Write the output result of the php segment: The answer is: 501. It involves two knowledge points: 1. php variable scope; 2. Auto-increment/auto-increment variables;   The interviewer understands the scope of "php variables" well, but he is not sure

[PHP] MySQL obtains the primary key (auto-increment ID) of the inserted data. to prevent primary key conflicts, the auto-increment (auto_increment type) field is often used during database design. Therefore, the primary key of the modified record is

[PHP] MySQL obtains the primary key (auto-increment ID) and mysql primary key of the inserted data.   To prevent primary key conflicts, auto-increment (auto_increment type) fields are often used in DB Design. Therefore, the primary key of the