السلام عليكم
اليوم اقدم لكم بعض دوال php بأبسط صيغة
و مستعد لأسئلة و المناقشة

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/* the first function in " if function "*/
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<?php
$a=1 ;
if ($a=="1") { echo " welcome " ; }
Echo "the end of this funtion " ;
?>
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/* the second function is " iF else function " */
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<?php
if ( $a=="a") { echo " welcome " ; }
else { echo " good bye" ; }
Echo "End " ;
?>
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/* the third function is " elseif function " */
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<?php
if ( $a ="a" ) { echo " welcome" ; }
elseif ($a=="b") { echo "welcome 2 " ; }
else { echo " welcome 3 " ; }
echo "end" ;
?>
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/* the 4th function is " while function " */
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<?php
$a="3";
while ( $a < 5) : $a +=0.5 ;
echo "welcome " ;
endwhile ;
?>
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/* the 5th function is " Do while function " */
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<?php
$a="0";
do { $a *=0.1 ; Echo "welcome " ; }
while ( $a<19 ) ;
?>
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/* the 6th function is " each or foreach function " */
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<?php
for ( $a="2"; $a<7 ; $a *=0.5 )
{ echo "welcome"; }
?>

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/* the 7th function is " for function " */
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<?php
$a=array (2,2,3,5,6);
foreach ($a as $v)
{ echo "9"; }
?>
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/* the 8th function is " break function " */
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<?php
$a=array (2,2,3,5,6);
foreach ($a as $v)
{
if ($v==3)
{break;}
echo "9";}
?>
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/* the 9th function is " switch function " */
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<?php
switch ($a)
{
case " mohamed" :
echo " hi mohamed" ;
break ;
case " youssef " ;
echo " hi youssef " ;
break;
}
?>

--------- " the End " -------------------------