PHP Manual

if

if , PHP. . if PHP C:

if ()
  

, . TRUE, PHP , FALSE - . , FALSE, ' '.

a b, $a , $b:

<?php
if ($a $b)
  echo 
"a  b";
?>

, . , if. . , a b, $a , $b, $a $b:

<?php
if ($a $b) {
  echo 
"a  b";
  
$b $a;
}
?>

if if, .


PHP Manual

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