Simple PHP algorithm problem (with extensions)

Simple PHP algorithm problem (to be perfected ...) ）

Print only 0

The specific number is determined by the input parameter n

Print 00000 as N=5

Print n 0 based on n value

Print a line 0101010101010101010101

The specific number is determined by the input parameter n

such as test.php?n=3 printing 010

Printing according to n value 010101 ...

Implementation 1 00 111 0000 11111

For if implementation

 
  PHP for ($i$i$i+ +)    {for ($j$j  $i $j+ +)        {if ($i % 2 = = 0            ) {echo ' 0 '; c23/>Else  {            echo ' 1 ';        }    }     Echo '
';}? >

for&if Statement Implementation

For switch implementation

While if implementation

While switch implementation

 
  php$i = 0;  while ($i <) {    $j = 0;      while ($j$i) {        switch ($i % 2) {            case 0:                echo ' 0 ';                  Break ;              Case 1:                echo ' 1 ';                  Break ;        }         $j++    ;    } Echo '
';     $i+ +;}? >

While&switch Statement Implementation

Implementation 0 01 010 0101 ...

Implementation 0 01 012 0123 3210 210 10 0

Make a calculator.

such as Test.php?a=1&b=2&operator=jia output 3

such as Test.php?a=5&b=2&operator=jian output 3

such as Test.php?a=2&b=5&operator=cheng output 10

such as Test.php?a=6&b=3&operator=chu output 2

Four-bit all-in-one computational function for subtraction processing

Advanced:

Number of daffodils

Bubble Sort Method

The above introduces a simple PHP algorithm problem (with the extension), including the content, I hope the PHP tutorial interested in a friend to help.

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