Php docs default value

Documenting default values for optional parameters in PHP with phpDocumentor

Scenario: Front-end = There will be 6 html input form field named as authorName, authorCountry, authorState and so on When user fills this fields, field values will be passed as a mysql parameters for searching db. Solution 3: the function should be like this when you don’t pass value to function default values are coming.

Documenting default values for optional parameters in PHP with phpDocumentor

With phpDocumentor, how do you document an optional parameter that has a default value like this:

public function myMethod ($param = 1234) < // . >

How do I write the @param tag in the docblock to get the default value documented?

The documentation is here

If you are not indicating in the actual code that the parameter is optional (via «$paramname = ‘a default value'»), then you should mention in the parameter’s description that the parameter is optional.

So for the source code in your question, you don’t need to do anything. But if you don’t include a default value for an optional parameter, you should include a note in the description detailing the default value.

Any way to specify optional parameter values in PHP?, Then you can pull values from the array. This allows for using named arguments in the array. If you want to allow optional number of arguments depending on context, then you can use func_num_args and func_get_args rather than specifying the valid parameters in the function definition. Then based on number of arguments, string lengths, etc you Usage examplefoo(array(‘lastName’ => ‘smith’)); // output: john smithFeedback

Any way to specify optional parameter values in PHP

Any way to specify optional parameter values in PHP — PHP [ Glasses to protect eyes while codiing : https://amzn.to/3N1ISWI ] Any way to specify optional pa

Handling optional search parameters in a PHP SQL query

I’m querying my SQL database in a PHP file from up to three optional search fields (passed through by jQuery). Any one, two or three of these fields can be used at any time to make the query as expansive or as narrow as the user likes. If nothing is in a search field nothing will be returned.

I’ve written the code so far to handle very basic one search queries and have just begun to add in the multiple parameters — this is where it’s starting to get tricky. I can query two fields together without too much bother but adding a third LOCATION parameter is beginning to take up too much code for all of the querying possibilities a user might make.

Here’s how my PHP file is set up for two parameters:

if (!empty($_POST['title']) && (!empty($_POST['name']))) < require '../db/connect.php'; $sql = "SELECT . FROM . WHERE `table 3`.`TRACKTITLE` = '" . mysql_real_escape_string(trim($_POST['title'])) . "' AND `table 3`.`ARTIST` = '" . mysql_real_escape_string(trim($_POST['name'])) . "'"; >if (!empty($_POST['name'])) < require '../db/connect.php'; $sql = "SELECT . FROM . WHERE `table 3`.`ARTIST` = '" . mysql_real_escape_string(trim($_POST['name'])) . "'"; >if (!empty($_POST['title'])) < require '../db/connect.php'; $sql = "SELECT . FROM . WHERE `table 3`.`TRACKTITLE` = '" . mysql_real_escape_string(trim($_POST['title'])) . "'"; >$result = mysql_query($sql); $data = array(); while ($array = mysql_fetch_assoc($result)) < $data[] = $array; 

Which is the simplest way to build a query with multiple optional parameters in PHP, accounting for any additional parameters that might be added on at a later date? I've read up on isnull values but do they perform a similar function to !emtpy ?

Do something along this line:

$whereclauses = array(); $subsets = false; // for every field if(!empty($_POST['name'])) < $subsets = true; $whereclauses[] = " artist = ". mysql_real_escape_string(trim($_POST['name'])); >if($subsets) < $whereclauses = implode(", ". $whereclauses); >else < $whereclauses =""; >// now build your query 

PHP Function with Optional Parameters, If you are commonly just passing in the 8th value, you can reorder your parameters so it is first. You only need to specify parameters up until the last one you want to set. If you are using different values, you have 2 options. One would be to create a set of wrapper functions that take different parameters and …

Phpdoc standard for setting default value of an optional parameter?

/** * This function will determine whether or not one string starts with another string. * @param string $haystack 
The string that needs to be checked.
 * @param string $needle 
The string that is being checked for.
 * @param boolean $case[optional] 
Set to false to ignore case(capital or normal characters)
 * @return boolean 
If the $haystack string does start with the $needle string, the return will be true. False if not.
 */ function endsWith($haystack,$needle,$case=true) < if($case)return (strcasecmp(substr($haystack, strlen($haystack) - strlen($needle)),$needle)===0); > 

The optional parameter is set to true by default. I wish to indicate what the default setting is in the documentation. Is there a standard way of doing this or do I have to mention it in the description?

Note that the $paramname. will be shown in the output docs in both the parameter listing AND the function signature. If you are not indicating in the actual code that the parameter is optional (via "$paramname = 'a default value'"), then you should mention in the parameter's description that the parameter is optional.

So if you're not showing the default assignment in the function signature, it would be a good idea to include it in the description, but in your case you are including it in the signature. So, you don't need to change a thing unless doing so would make you feel better.

How do you create optional arguments in php?, In the PHP manual, to show the syntax for functions with optional parameters, they use brackets around each set of dependent optional parameter. For example, for the date() function, the manual reads:

Php mysql function with optional parameter

I need help with giving optional parameters for php function which will search in MySQL database for the matching criteria.

Scenario: Front-end = There will be 6 html input form field named as authorName, authorCountry, authorState and so on

When user fills this fields, field values will be passed as a mysql parameters for searching db. Here the problem is, if user wants to know the list of authors in USA, he will enter USA in country field and leave other fields. But this will break the mysql query since other fields are left blank.

i tried doing but it dint work for me.

function getAuth(authName=NULL, authCoun=NULL, authSate=NULL)

function getAuth($authName=NULL, $authCoun=NULL, $authSate=NULL) < $sql = "SELECT * FROM authTable WHERE 1 = 1"; if ($authName) < $sql .= " AND authName='$authName'"; >if ($authCoun) < $sql .= " AND authCoun='$authCoun'"; >if ($authSate) < $sql .= " AND authSate='$authSate'"; >return mysql_query($sql); > 

And make sure you have these variable escaped before passing to the function.

SELECT * FROM authTable WHERE 1 = 1 AND (@authName IS NULL OR authName = @authNameParam) AND (@authCoun IS NULL OR authCoun = @authCounParam) AND (@authSate IS NULL OR authSate = @authSateParam) . 

This query won't break even if no parameters at all passed to this query, i.e passed all with NULL value in this case the whole WHERE clause will become WHERE 1 = 1 which will acts like SELECT * FROM authtable as if there were no WHERE clause.

the function should be like this

function getAuth(authName=NULL, authCoun="Default value", authSate="Default value") <> 

when you don't pass value to function default values are coming.

PHP Optional Parameters - specify parameter value by, I am altering the Omnistar Affiliate program which I have integrated into Interspire Shopping Cart - so I want to keep a function working as normal for any places where I dont change the call to the function, but in one place (which I am extending) I want to specify additional parameters.

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PHP Default Parameters

Summary: in this tutorial, you’ll learn about PHP default parameters and default parameters to simplify the function calls.

Introduction to the PHP default parameters

The following defines the concat() function that concatenates two strings with a delimiter:

 function concat($str1, $str2, $delimiter) < return $str1 . $delimiter . $str2; >Code language: HTML, XML (xml)

When you call the concat() function, you need to pass exactly three arguments. For example:

 function concat($str1, $str2, $delimiter) < return $str1 . $delimiter . $str2; > $message = concat('Hi', 'there!', ' '); echo $message;Code language: HTML, XML (xml)

However, you’ll find that you often use the space ‘ ‘ as the delimiter. And it’s repetitive to pass the space whenever you call the function.

This is why default parameters come into play.

PHP allows you to specify a default argument for a parameter. For example:

 function concat($str1, $str2, $delimiter = ' ') < return $str1 . $delimiter . $str2; >Code language: HTML, XML (xml)

In this example, the $delimiter parameter takes the space as the default argument.

When you call the concat() function and don’t pass the delimiter argument, the function will use the space for the $delimiter like this:

 function concat($str1, $str2, $delimiter = ' ') < return $str1 . $delimiter . $str2; > $message = concat('Hi', 'there!'); echo $message;Code language: HTML, XML (xml)

However, if you pass an argument for the $delimiter , the function will use that argument instead:

 function concat($str1, $str2, $delimiter = ' ') < return $str1 . $delimiter . $str2; > $message = concat('Hi', 'there!', ','); echo $message;Code language: HTML, XML (xml)

In this example, we passed a comma to the $delimiter . The concat() function used the comma ( , ) instead of the default argument.

When you specify a default argument for a parameter, the parameter becomes optional. It means that you can pass a value or skip it.

Default arguments

The default arguments must be constant expressions. They cannot be variables or function calls.

PHP allows you to use a scalar value, an array, and null as the default arguments.

The order of default parameters

When you use default parameters, it’s a good practice to place them after the parameters that don’t have default values. Otherwise, you will get unexpected behavior. For example:

 function concat($delimiter = ' ', $str1, $str2) < return $str1 . $delimiter . $str2; > $message = concat('Hi', 'there!', ','); echo $message; Code language: HTML, XML (xml)

Summary

• Use default parameters to simplify the function calls.
• Default parameters are optional.

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