[SOLVED] very quick question

[nikefido]

can someone really quickly explain the use of "?" and ":" in a conditional statement?

 

ie. rather than using IF ELSE etc you do something like

 

$title ? dothis : orDoThis; //not sure if this is right

 

is this like typing:

 

if($title) {
doThis;
}else{
orDoThis;
}

 

??

[rhodesa]

yes...the first part is your conditional statement, then after the ? is if it's true and after the : is if it's false. It's use most to shorten up this case:

 

<?php
if($test > 3){
  $result = 'first case';
}else{
  $result = 'second case';
}
?>

shortened to

<?php
$result = $test > 3 ? 'first case' : 'second case';
?>

[laffin]

<test_expression>?<true_expression>:<false_expression>

 

U use boolean conditional when an expression is required.

$sample = <expression>;

 

just provides a shortcut when u have 2 results based on an expression, and returns either the true expression or false expression depending on the test_expression.

 

if($gender=='m') $display='Male';

else $display='Female';

 

see all the repetition

 

shorten with

$display=($gender=='m'?'Male':'Female')

 

 

 

[revraz]

http://www.ilovejackdaniels.com/php/ternary-conditionals/