PHP Function

projectsoft.biz
ก
PHP MySQL Ajax(jquery)

Web Application F
PHP Function
F function
function( F F ก F F )
{
…….. ;
…….. ;
return F F ก F ก ;
}

projectsoft.biz
ก
PHP MySQL Ajax(jquer...
PHP Function
<?php
echo hello();
function hello()
{
return "hello";
}
?>

projectsoft.biz
ก
PHP MySQL Ajax(jquery)

Web Ap...
PHP Function
<?php
echo showNum(1);
function showNum($n)
{
if($n=="1")
{return 1;}
else if($n=="2")
{return 2;}
}
?>
proje...
PHP Function
showStart(3);
function showStart($n){
$count1=1;
while($count1<=$n){$count2=1;
while($count2<=$count1)
{echo ...
PHP Sub String Function
substr(string,start position,length );
F
<?php
$str="abc";
echo substr($str,1,1);
?>
F F b

projec...
PHP Sub String Function
<?php
$str="abc";
echo substr($str,1);
?>
F

F
F

bc
F

ก F F F
F

projectsoft.biz
ก
PHP MySQL Aja...
PHP Sub String Date
<?php
echo showDate("2010-10-18");
function showDate($date)
{
$day=substr($date,8,2);
$month=substr($d...
PHP String Replace
<?php
$str="hello WORLD";
echo str_replace("hello","HELLO",$str);
?>
F F HELLO WORLD
ก
F
F F string
ก
F...
PHP String Replace
<?php
$str="anbncn";
echo str_replace("n","<br />",$str);
?>

projectsoft.biz
ก
PHP MySQL Ajax(jquery)
...
PHP String Length
Function strlen() F
<?php
echo strlen("php");
?>
F F ˈ
php

projectsoft.biz
ก
PHP MySQL Ajax(jquery)

We...
PHP String Length
<?php
$str="12345";
if(strlen($str)>6){echo "greater than 6 ";}
else{echo “less than 6”;}
?>

projectsof...
PHP String Position
strpos($string, "find string")
Function strpos F
F
F F
string
$string
string
ก
find string
ก
F ก
<?php...
PHP String Position
ก
F
F ก F
function strpos return false
<?php
$mystring = 'bc';
$findme = 'a';
$pos = strpos($mystring,...
F ก

ก

file

<?php
$file_name="my_picture.jpg";
$type = substr($file_name, strpos($file_name,"."));
echo $type;
?>
F
ก
.j...
ก

string

ก

string ก
ก
function strtolower()
<?php
$str1="HeLLoWoRLd";
$str2=strtolower($str1);
echo $str2;
?>

projects...
ก

string

ก

string ก
ก
function strtoupper()
<?php
$str1=“heLLoWoRld";
$str2= strtoupper($str1);
echo $str2;
?>

project...
F function date()
ʾ

ก F ก
ˆ
function date() F
• date("d/m/Y")
• ก F ก
F
ˆ
• date("H:i:s")

projectsoft.biz
ก
PHP MySQL Aj...
ʾ
•
•
•
•
•
•
•
•

F function date()

function date()
F ก
F
ˈ
d
m
Y
ʾ ..
ก
y
ʾ ..
ก
H
ˈ
i
s
projectsoft.biz
ก
PHP MySQL Aj...
ก

F

<?php
$strDate1="2012-01-01";//
F
$strDate2="2012-02-1";//
echo DateDiff($strDate1,$strDate2);
// ก function DateDif...
ก

/F

<?php
//ก
echo date('Y-m-d', strtotime(' +1 day'));//

n

php
F

echo date('Y-m-d', strtotime('+60 day', strtotime(...
PHP Include

projectsoft.biz
ก
PHP MySQL Ajax(jquery)

Web Application F
PHP include
include(“
F.php”);
include(“
.php”);
F
ก
F
include
F F
F include1_1.php
<?php echo "Hello ";?>
<?php
include("...
PHP include
F

F include1_1.php F folder include

F

ก

<?php
include("include/include1_1.php");
echo " World";
?>
F
F

F
...
PHP include + Function
F showDate.php
F function F
<?php
function showDate($date)
{
$day=substr($date,8,2);
$month=substr(...
PHP + Include
<?php
include("function/showDate.php");
$date=showDate("2010-10-01");
echo $date;
?>
F

include

projectsoft...
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Session3

  1. 1. PHP Function projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F
  2. 2. PHP Function F function function( F F ก F F ) { …….. ; …….. ; return F F ก F ก ; } projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F
  3. 3. PHP Function <?php echo hello(); function hello() { return "hello"; } ?> projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F
  4. 4. PHP Function <?php echo showNum(1); function showNum($n) { if($n=="1") {return 1;} else if($n=="2") {return 2;} } ?> projectsoft.biz ก Web Application F PHP MySQL Ajax(jquery)
  5. 5. PHP Function showStart(3); function showStart($n){ $count1=1; while($count1<=$n){$count2=1; while($count2<=$count1) {echo "*";$count2++;} echo "<br />"; $count1++;} } projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F
  6. 6. PHP Sub String Function substr(string,start position,length ); F <?php $str="abc"; echo substr($str,1,1); ?> F F b projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F
  7. 7. PHP Sub String Function <?php $str="abc"; echo substr($str,1); ?> F F F bc F ก F F F F projectsoft.biz ก PHP MySQL Ajax(jquery) ˈ F F string F F Web Application F string F ก F ก string F F
  8. 8. PHP Sub String Date <?php echo showDate("2010-10-18"); function showDate($date) { $day=substr($date,8,2); $month=substr($date,5,2); $year=substr($date,0,4); return $day."/".$month."/".$year; } ?> projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F
  9. 9. PHP String Replace <?php $str="hello WORLD"; echo str_replace("hello","HELLO",$str); ?> F F HELLO WORLD ก F F F string ก F ก F ก F string F string F projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F string
  10. 10. PHP String Replace <?php $str="anbncn"; echo str_replace("n","<br />",$str); ?> projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F
  11. 11. PHP String Length Function strlen() F <?php echo strlen("php"); ?> F F ˈ php projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F ก ก F 3 string F ก
  12. 12. PHP String Length <?php $str="12345"; if(strlen($str)>6){echo "greater than 6 ";} else{echo “less than 6”;} ?> projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F
  13. 13. PHP String Position strpos($string, "find string") Function strpos F F F F string $string string ก find string ก F ก <?php $str="@bc"; echo strpos($str,"@"); ?> ก F ก 0 ก F 0 projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F F ก F ก F F F F Fก F F F
  14. 14. PHP String Position ก F F ก F function strpos return false <?php $mystring = 'bc'; $findme = 'a'; $pos = strpos($mystring, $findme); if ($pos === false) { echo "The string ”.$findme.“ was not found in the string”; } ?> projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F
  15. 15. F ก ก file <?php $file_name="my_picture.jpg"; $type = substr($file_name, strpos($file_name,".")); echo $type; ?> F ก .jpg projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F
  16. 16. ก string ก string ก ก function strtolower() <?php $str1="HeLLoWoRLd"; $str2=strtolower($str1); echo $str2; ?> projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F ก F ˈ F ˈ F ก F ก F F
  17. 17. ก string ก string ก ก function strtoupper() <?php $str1=“heLLoWoRld"; $str2= strtoupper($str1); echo $str2; ?> projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F ก F ˈ F ˈ F F F F F F
  18. 18. F function date() ʾ ก F ก ˆ function date() F • date("d/m/Y") • ก F ก F ˆ • date("H:i:s") projectsoft.biz ก PHP MySQL Ajax(jquery) / ʾ / • ˆ Web Application F ˈ : F : F
  19. 19. ʾ • • • • • • • • F function date() function date() F ก F ˈ d m Y ʾ .. ก y ʾ .. ก H ˈ i s projectsoft.biz ก PHP MySQL Ajax(jquery) F parameter ʾ Web Application F ˈ sting F
  20. 20. ก F <?php $strDate1="2012-01-01";// F $strDate2="2012-02-1";// echo DateDiff($strDate1,$strDate2); // ก function DateDiff F F F // F function DateDiff F F $strDate1 $strDate2 function DateDiff($strDate1,$strDate2) { // ˈ F // F F 86400 ( 1 86400 ) F return (strtotime($strDate2) - strtotime($strDate1))/ ( 60 * 60 * 24 ); } ?> projectsoft.biz PHP MySQL Ajax(jquery) ก Web Application F
  21. 21. ก /F <?php //ก echo date('Y-m-d', strtotime(' +1 day'));// n php F echo date('Y-m-d', strtotime('+60 day', strtotime("2012-5-2"))); // ก 2 2554 60 //ก กF F echo date('Y-m-d', strtotime(' -1 day'));// echo date('Y-m-d', strtotime('-60 day', strtotime( "2012-1-31" ))); // F ก 1 2554 60 ?> projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F
  22. 22. PHP Include projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F
  23. 23. PHP include include(“ F.php”); include(“ .php”); F ก F include F F F include1_1.php <?php echo "Hello ";?> <?php include("include1_1.php"); echo " World"; ?> F F Hello World projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F F
  24. 24. PHP include F F include1_1.php F folder include F ก <?php include("include/include1_1.php"); echo " World"; ?> F F F F projectsoft.biz ก PHP MySQL Ajax(jquery) ˈ Hello World F ก F Web Application F F F F F ก include
  25. 25. PHP include + Function F showDate.php F function F <?php function showDate($date) { $day=substr($date,8,2); $month=substr($date,5,2); $year=substr($date,0,4); return $day."/".$month."/".$year; } ?> projectsoft.biz ก PHP MySQL Ajax(jquery) Web Application F
  26. 26. PHP + Include <?php include("function/showDate.php"); $date=showDate("2010-10-01"); echo $date; ?> F include projectsoft.biz ก PHP MySQL Ajax(jquery) function showDate F Web Application F
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