PHP

HOW TO USE if STATEMENTS IN PHP

If statements execute a certain specified block of code only if a certain specified condition is true. The general format is as follows:

if (certain condition is true)

{

specified block of code to execute

}

Example:

$lastName="Bond";

if ($lastName=='Bond')

{

echo "Are you related to James?";

}

Only if the specified condition of $lastName=='Bond' is true, will the block of code {between the curly braces} execute which, in this example, is to echo Are you related to James?

In the above case, $lastName is Bond (as we declared it at this line: $lastName="Bond";) so therefore the block of code {between the curly braces} will execute.

If $lastName was not Bond, the block of code {between the curly braces} won't execute and nothing is outputted as below.

Example:

$lastName="Smith";

if ($lastName=='Bond')

{

echo "Are you related to James?";

}

Nothing is outputted.