php flow control statements include: 1. The process of executing sequential statements is from top to bottom, from left to right, without jumping; 2. The selection statement can only be executed if it meets the conditions, and judgment is required; 3 , There are three main types of loop control statements: while, for, and do while.
php process control statements include:
PHP has three major process control statements, namely sequence statement and selection statement ,loop statement.
1. Sequential statementsThe execution process is from top to bottom, from left to right, without jumping.
2. The selection statement is very interesting. It can be executed only when the conditions are met. There are many kinds of selection statements.
1.
1 2 3 |
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2.
1 2 3 4 5 |
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3.
1 2 3 4 5 6 7 |
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4.
1 2 3 4 5 6 7 |
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3. Loop control statement There are three main types: while
, for
, do while
. To put it bluntly, it means repeated execution. But you need to understand how many times it is executed.
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1 2 3 4 5 |
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2.
1 2 3 |
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3.
1 2 3 4 5 |
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In PHP, there is a special loop. Cyclic associative array
4.
1 2 3 |
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