Several PHP code snippets worthy of study by beginners_PHP Tutorial

Classic loop example

for($counter = 1; $counter <= 6; $counter++) //Loop 6 times
{
                                                              print("counter is $counter
"); //Print 6 times
}  
?>

Advanced uses of for





/*
​ ** Print necessary description text
*/
Print("How many days until Monday? ");
Print("

");
for($currentDate = date("U"); //Define $currentDate time format
date("l", $currentDate) != "Monday"; //Determine whether the current system time is Monday
$ Currentdate += (60 * 60 * 24)) // Add 1 day
{
            /*
​​​​​ **Print time name
*/
                                           print("
1. " . date("l", $currentDate) . " ");
   }

   print("

");
?>

Simple call of function:

Function printBold($inputText) //Define function printBold()
{
              print("" . $inputText . "");         ////Print $inputText
}
Print("This line is not emphasized!
"); //Print the string directly
printBold("This line is aggravated!!!"); //Call function printBold() function
Print("
");
Print("This line is not emphasized!
"); //Print the string directly
?>



Functions with return values ​​






Function makeBold($inputText) //Define function makeBold() function
{
          $boldedText = "";
          $boldedText .= $inputText;
$boldedText .= "";
           return($boldedText);                                                                                                                                                                                                                          . }
Print("This line is not emphasized!!!
"); //Print the string directly
Print(makeBold("This line has been highlighted!!!") . "
");//Call function makeBold() function
Print("This line is not emphasized!!!
"); //Print the string directly
?>

Function with default parameters






function printColored($Text, $Color="black") //Define function
{
Print ("& lt; font color =" $ color "& gt; $ text & lt;/font & gt;"); // Get the content and color of the string
}
PrintColored("This is a black word!"); //Call function
Print("

");
PrintColored("This is a blue word!", "blue"); //Call function
Print("
");
?>

Use the rule algorithm to determine whether it is an integer

Function checkInteger($Number)
{
            if($Number > 1)
            {
/* An integer minus 1 is still an integer */
              return(checkInteger($Number-1));
}
        elseif($Number < 0)
            {
                  /* For a negative number, */
                                                            /* Can analyze its absolute value*/
               return(checkInteger((-1)*$Number-1));//Take the absolute value and analyze negative numbers as integers
}
        else
            {
If(($Number > 0) AND ($Number < 1))
                 {
               return("Of course not");
            }
           else
                 {
                          /* 0 and 1 are integers                                                                                                                      /* According to relevant mathematical definitions */
                 return("Yes");
            }
}
}
Print("Is 0 an integer?" .
           checkInteger(0) . "
");
Print("7 is

http://www.bkjia.com/PHPjc/486485.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/486485.htmlTechArticleClassic loop example HTML HEAD TITLE Classic loop example/TITLE /HEAD BODY ? for($counter = 1; $counter = 6; $counter++) //Loop 6 times { print(Bcounter is $counter/BBR); //Print 6 times} ?...