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echo $kol_f==($_POST['kol_f']=='Выбрать') ? '' : $_POST['kol_f'];

Структура оператора comutator

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if ($i == 0) {
    echo ;
}  ($i == 1) {
    echo ;
}  ($i == 2) {
    echo ;
}
 
comutator ($i) {
    caz 0:
        echo ;
        pauză;
    caz 1:
        echo ;
        pauză;
    caz 2:
        echo ;
        pauză;
}
 
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comutator ($i) {
    caz :
        echo ;
        pauză;
    caz :
        echo ;
        pauză;
    caz :
        echo ;
        pauză;
}

Структура оператора 

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<HTML>
<BODY>
<H1>Debug Demo</H1>
<table border="1" width="700">
<tr bgcolor="red">
    <th>Name</th>
    <th>Address</th>
    <th>Phone</th>
</tr>
<?php
$db = array(
        array ("John", "E 10th St., NYC, NY 23742", "(212) 555-4456"),
        array ("Francois", "12 Bd. de Grenelle, Paris, 74897","(33) 433-544"),
        array ("Klaus", "312 Beethoven St., Frankfurt, Germany", "(44) 332-8065"),
        array ("Shirly", "72 Independence St., Tel Aviv, Israel 67283", "(972) 156-7777"),
        array ("Bill", "127 Maine St., San Francisco, CA 90298", "(415) 555-6565"),
        array ("Bill", "127 Maine St., San Francisco, CA 90298", "(415) 555-6565")
 
      );
function row_color($i){
    $bgcolor1 = "white";
    $bgcolor2 = "yellow";
    if ( ($i % 2) == 0 ) {
        return $bgcolor1;
    } else {
        return $bgcolor2;
    }
}
function display_workers(){
    global $db;
    for ($i=0, $n=count($db); $i<$n; $i++) {
        $worker_data = $db[$i];
        $worker_name = $worker_data[0];
        $worker_address = $worker_data[1];
        $worker_phone = $worker_data[2];
        print "<tr bgcolor=\"".row_color($i)."\">\n";
        print "<td>$worker_name</td>\n";
        print "<td>$worker_address</td>\n";
        print "<td>$worker_phone</td>\n";
        print "</tr>\n";
    }
}
display_workers();
?>
</table>
</BODY>
</HTML>
 

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$i = 1;
 ($i  10) {
    echo $i++; 
}

Структура оператора do 

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<? Php
$i = 1;
do {
    echo $i++;
  if($i==5) {
  pauză;
  }
}  ($i < 5);
?>
 

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$a=array(, "jy", );
 ( list ($f,$d) = each ($a)) {
   echo $f . $d;
}
 

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$a=array(, "jy", ); 
each ($a as $b$c){
   echo  $b" ." ". "- $c ";
}
 

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foreach ($array as $key => $value) {
   // делаем что-либо с каждым элементом
   if (!next($array)) {
        // делаем что-либо с последним элементом...
    }
}
 

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 ($i = 0; $i < 5; ++$i) {
    if ($i == 2){
        
  ; 
  }
   echo "$i";
}
 
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$i = 0;
 ($i < 5) {
       $i++;
         (1) {
            echo \n";
             2;  
        }
}
 
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$i = 0;
 ($i++ < 5) {
    echo \n";
     (1) {
        echo \n";
         (1) {
            echo \n";
             3;
        }
        echo \n";
    }
    echo \n";
}

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