I use the following snippet quite often when I am debugging:
echo "<pre>" . var_dump($var) . "</pre>";
And I find I usually get a nice readable output. But sometimes I just don’t. I’m particularly vexed at the moment by this example:
<?php $username='xxxxxx'; $password='xxxxxx'; $data_url='http://docs.tms.tribune.com/tech/tmsdatadirect/schedulesdirect/tvDataDelivery.wsdl'; $start=gmdate("Y-m-d\TH:i:s\Z",time()); $stop =gmdate("Y-m-d\TH:i:s\Z",time()+3600*24); $client = new SoapClient($data_url, array('exceptions' => 0, 'user_agent' => "php/".$_SERVER[SCRIPT_NAME], 'login' => strtolower($username), 'password' => $password)); $data = $client->download($start,$stop); print_r($data); ?>
I don’t want to reveal my credentials of course, but I am told print_r in this case will do the same as my usual snippet when in fact neither print_r nor my snippet produce anything other than runon data with no formatting at all. How can I make it pretty?!
var_dump always show you array in formatted data but too much extra stuff
but if you want formatted data here you need to use
echo '<pre>'; print_r($data); echo '</pre>';
var_dump() echos output directly, so if you want to capture it to a variable to provide your own formatting must use output buffers:
ob_start(); var_dump($var); $s = ob_get_clean();
Once this is done the variable $s now contains the output of var_dump(), so can safely:
echo "<pre>" . $s . "</pre>";
var_dump is used when you want the more detail about any variable .
<?php $temp = "hello" ; echo var_dump($temp); ?>
it output as follows string(5) “hello” means it print the data type of variable and length of string and what is the content in the variable.
while print_r($expression) is used for printing the data like array or any other object data type which can not directly printed by echo statement.
Well, print_r() is used to print and array, but in order to display the array in a pretty way you also need html tags.
Just do the following:
echo "<pre>"; print_r($data); echo "</pre>";