Archív pre kategóriu ‘Otázky na pohovor’

while(vyraz){
  prikazy;
}

while(vyraz):
  prikazy;
endwhile;

do {
prikaz;
} while(vyraz);

for(init;podm;iteracia) {
  prikazy;
}

for(init;podm;iteracia):
  prikazy;
endfor;

foreach($pole as $index => $hodnota) {
  prikazy;
}

foreach($pole as $hodnota) {
  prikazy;
}

if (vyraz) {
  prikazy1;
} else {
  prikazy2;
}

if (vyraz):
  prikazy1;
else:
  prikazy2;
endif;

if (vyraz1) {
  prikazy1;
}
elseif (vyraz2) {
  prikazy2;
}
elseif (vyraz3) {
  prikazy3;
}
else{
  prikazy4;
}

if (vyraz1) :
  prikazy1;
elseif (vyraz2):
  prikazy2;
elseif (vyraz3):
  prikazy3;
else:
  prikazy4;
endif;

switch (vyraz) {
  case hodnota1:
    prikazy;
    break;
  case hodnota2:
    prikazy2;
    break;
  case hodnota3:
    prikazy3;
    break;
  default:
    prikazy4;
}

switch (vyraz):
  case hodnota1:
   prikazy;
   break;
case hodnota2:
   prikazy2;
   break;
case hodnota3:
   prikazy3;
   break;
default:
   prikazy_4;
endswitch;

//komentar
#komentar

/*
komentar
*/

<?php
/* Intentional file error */
$my_file = @file ('non_existent_file') or
    die ("Failed opening file: error was '$php_errormsg'");
 
// this works for any expression, not just functions:
$value = @$cache[$key];
// will not issue a notice if the index $key doesn't exist.
?>

<?php
 
class p {
 
    function p() {
        print "Parent's constructor\n";
    }
 
    function p_test() {
        print "p_test()\n";
        $this->c_test();
    }
}
 
class c extends p {
 
    function c() {
        print "Child's constructor\n";
        parent::p();
    }
 
    function c_test() {
        print "c_test()\n";
    }
}
 
$obj = new c;
$obj->p_test();
 
?>

parent::__construct()

<?php
$a = 5;
$b = 'a';
echo (int)$$b;
?>

<?php
function foo()
{
    $numargs = func_num_args();
    echo "Number of arguments: $numargs\n";
}
 
foo(1, 2, 3);    //outputs: Number of arguments: 3
?>