Php object array length

How to get length of object in php

Here function converts the variable into an array and the function counts the size of array and stores it into the variable Solution 1: The problem is that count is intended to count the indexes in an array, not the properties on an object, (unless it’s a custom object that implements the Countable interface). Simply casting an object as an array won’t always work but being a simple stdClass object it should get the job done here.

Count Objects in PHP

The count function is meant to be used on

Arrays Objects that are derived from classes that implement the countable interface A stdClass is neither of these. The easier/quickest way to accomplish what you’re after is

$count = count(get_object_vars($products)); 

This uses PHP’s get_object_vars function, which will return the properties of an object as an array. You can then use this array with PHP’s count function.

From your example, using objects for this seems a very bloated method. Using a simple array would be much easier and faster.

object(stdClass)#46 (3) < ["0"]=>object(stdClass)#47 (1) < ["productid"]=>string(2) "15" > > 

Your example only seems to be storing a product id, so you don’t strictly need a key of «productid»

Is there any specific reason you need to use objects?

Try this: $count = sizeof(get_obj_vars($products))

Here get_obj_vars function converts the $products variable into an array and the sizeof function counts the size of array and stores it into the variable $count

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PHP: Count a stdClass object

The problem is that count is intended to count the indexes in an array, not the properties on an object, (unless it’s a custom object that implements the Countable interface). Try casting the object, like below, as an array and seeing if that helps.

Simply casting an object as an array won’t always work but being a simple stdClass object it should get the job done here.

The count function is meant to be used on

A stdClass is neither of these. The easier/quickest way to accomplish what you’re after is

$count = count(get_object_vars($some_std_class_object)); 

This uses PHP’s get_object_vars function, which will return the properties of an object as an array. You can then use this array with PHP’s count function.

The object doesn’t have 30 properties. It has one, which is an array that has 30 elements. You need the number of elements in that array.

Get array length in a PHP class, Get array length in a PHP class. Ask Question Asked 4 years, 10 months ago. Modified 2 years, 11 months ago. Viewed 8k times 5 I’m new to object oriented programming in PHP. I made a simple order class with an array property. The method orderLength is not working. I’m getting an error: Call to undefined …

How to get the size of the content of a variable in PHP

strlen returns the number of bytes in the string, not the character length. View the PHP Manual here.

Note:

strlen() returns the number of bytes rather than the number of characters in a string.

If you take the result and multiple by 8, you can get bits.

Here is a function which can easily do the math for you.

Note , if you use, memory_get_usage() , you will have the wrong value returned. Memory get usage is the amount of memory allocated by the PHP script. This means, within its parser, it is allocating memory for the string and the value of the string. As a result, the value of this before and after setting a var, would be higher than expected.

Example, the string: Hello, this is just test message , produces the following values:

Memory (non-real): 344 bytes Strlen: 32 Bytes Strlen * 8bits: 256 bits 

A character is one byte, so just check the string length. Divide by 1024 if you need it in KB (be prepared for a decimal).

$start_memory = memory_get_usage(); $foo = "Some variable"; echo memory_get_usage() - $start_memory; 

This is good if you are working with any type of var.

PHP’s function to list all objects’s properties and methods, You can use the Reflection API’s ReflectionClass::getProperties and ReflectionClass::getMethods methods to do this (although the API doesn’t seem to be very well documented). Note that PHP reflection only reflects compile time information, not runtime objects. If you want runtime objects to also be included …

How to get length of integers in PHP ?

$num_length = strlen((string)$num); if($num_length == 10) < // Pass >else < // Fail >

if (preg_match('/^\d$/', $string)) < // pass >else < // fail >

This will work for almost all cases (except zero) and easily coded in other languages:

$length = ceil(log10(abs($number) + 1) 

Php — Get string length of each element in an array, I’m trying to set the max length of each post on a site, but strlen() doesn’t work with arrays. php — Get string length of each element in an array. Ask Question Asked 7 years, 5 months ago. Modified 7 years, 5 months ago. Viewed 3k times Then you need to convert the object to a array, which I’m not familiar …

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Php get length of array object

But its not showing the values and array length showing more than expected .expected length value is 8 but showing 101 in console . and array data in console My ajax request is this and the php code is this Solution 1: 101 is the length of the string The expected result of this is «1» because you have 7 json objtect inside of json array JavaScrip can’t decode de Json? Question: I have following array of structure and want count number of offers.

Array from js to php, error counting array length

I am trying to pass an array from my .js file to a php file. The array looks like the following in js:

theBlock[0 - 79] with the values color, x and y. So for example theBlock[10].color or theBlock[79].x 

This data is passed with the following script:

$.ajax(< type: 'POST', url: 'insert.php', data: $(theBlock).serialize() >).done(function (data) < console.log(data); >).fail(function () < alert("Failed"); >); 

$newData = $_POST; echo count($newData["theBlock"]) . "\n"; 

Now when calling the function which activates this, the data should be passed to php which then sends me back the length of the array. Well, it always sends me back «0».

The array is created by the following script:

After that the array is changed in the following way:

if (ctx.getImageData(xPixel + minX, yPixel + minY, 1, 1).data[3] == 255 && ctx.getImageData(xPixel + minX, yPixel + minY, 1, 1).data[0] == 000) < + (yBlock - 1) * 8) - 1; theBlock[id] = < color: 1, x: xBlock, y: yBlock >; > 

Well, you can’t use serialize() on a javascript variable. Refer to the API documentation. http://api.jquery.com/serialize/

If you want to encode a JSON array, use JSON.stringify() and then json_decode() it.

$.ajax( < type: 'POST', url: 'insert.php', data: < block: JSON.stringify(theBlock) >>).done(function (data) < console.log(data); >).fail(function () < alert("Failed"); >); 

And you don’t need to assign $_POST to a variable, just use it directly.

echo count(json_decode($_POST['block'])) . "\n"; 

Sidenote: If you simply want to know the array length, you don’t need PHP to do that. Just do theBlock.length and you get the length.

Javascript : array.length returns undefined, Objects don’t have a .length property. A simple solution if you know you don’t have to worry about hasOwnProperty checks, would be to do

Count of stdClass objects Array in php

I have following array of stdClass Object structure and want count number of offers. Std class is received as a response from third party API so it is dynamic.

stdClass Object ( [Offer] => Array ( [0] => stdClass Object ( [Offerid] => 1 [LoanAmount] => 2**** [InterestRate] => 2* [Term] => 36 [MonthlyPayment] => 7*** [Annualfee] => 0 [OriginationFee] => 1*** ) [1] => stdClass Object ( [Offerid] => 1 [LoanAmount] => 2**** [InterestRate] => 2* [Term] => 36 [MonthlyPayment] => 7*** [Annualfee] => 0 [OriginationFee] => 1*** ) [2] => stdClass Object ( [Offerid] => 1 [LoanAmount] => 2**** [InterestRate] => 2* [Term] => 36 [MonthlyPayment] => 7*** [Annualfee] => 0 [OriginationFee] => 1*** ) ) ) 

i want count number of arrays in [Offer] , for that i have done following:

but it gives 1 as a count like count———-1 in this case count is 3 and i want 3 as output. Please suggests. i have also used this echo «count———-«.count((array)$offers); This also dont works.

You can do it like convert «stdClass Object» into normal array and try after that count($offer);

Just write (array)$object; It will convert as normal array

Offer = array( array('Offerid' => 1, 'LoanAmount' => '2***', 'InterestRate' => '2*', 'Term' => 36, 'MonthlyPayment' => '7***', 'Annualfee' => 0, 'OriginationFee' => '1***'), array('Offerid' => 1, 'LoanAmount' => '2***', 'InterestRate' => '2*', 'Term' => 36, 'MonthlyPayment' => '7***', 'Annualfee' => 0, 'OriginationFee' => '1***'), array('Offerid' => 1, 'LoanAmount' => '2***', 'InterestRate' => '2*', 'Term' => 36, 'MonthlyPayment' => '7***', 'Annualfee' => 0, 'OriginationFee' => '1***'), ); echo count($obj->Offer); // Outputs 3 ?> 

I have solved my question by following way:

foreach ($offers as $key=> $value) < echo "
count->".count($value); > 

this loops itreate only once, and give me result.

 $arrayobj = new ArrayObject(new Example()); var_dump($arrayobj->count()); $arrayobj = new ArrayObject(array('first','second','third')); var_dump($arrayobj->count()); ?> 

The above example will output:

Find length (size) of an array in JavaScript, Because 2 isn’t an array, it’s a number. Numbers have no length. Perhaps you meant to write testvar.length ; this is also undefined, since objects (created

Array length showing more than expected

Am fetching some table column data from MySQL using ajax and json and needed to show these value to the corresponding input id tags.But its not showing the values and array length showing more than expected .expected length value is 8 but showing 101 in console . and array data in console

My ajax request is this

$('#add').click(function(event)< event.preventDefault(); var patient_no = $('.patient_no').val(); $.ajax(< url : 'get_visit_details.php', type : 'post', data :, datatype : 'json', success:function(data) < var len = data.length; console.log(len); console.log(data); for(var i = 0;i < len; i++)< var pat_name = data[i]['name']; var gender = data[i]['gen']; var address = data[i]['add']; var d_birth = data[i]['dob']; var age = data[i]['ag']; var mobile = data[i]['mob']; var tele = data[i]['tel']; $('.pat_name').val(pat_name); $('.gender').val(gender); $('.address').val(address); $('.d_birth').val(d_birth); $('.age').val(age); $('.tele').val(tele); $('.mobile').val(mobile); >> >); >); 

and the php code is this

$patient_no = $_POST['patient_no']; $sql = "SELECT pat_name,gender,address,d_birth,age,mobile,tele,reg_no FROM patient WHERE reg_no = '$patient_no' "; $result = query($sql); confirm($result); if($row = fetch_array($result)) < $pat_name = $row['pat_name']; $gender = $row['gender']; $address = $row['address']; $d_birth = $row['d_birth']; $age = $row['age']; $mobile = $row['mobile']; $tele = $row['tele']; >$patient_data = array(); $patient_data[] = array("name" => $pat_name,"gen" => $gender, "add" => $address ,"dob" => $d_birth , "ag" => $age , "mob" => $mobile,"tel" => $tele); echo json_encode($patient_data); 

101 is the length of the string

The expected result of this is «1» because you have 7 json objtect inside of json array

JavaScrip can’t decode de Json? Try to do this

var obj = jQuery.parseJSON( '[]' ); console.log(obj.length); 

I test that in developer console, if not work the likely php output contains ilegal character, show the php output in «raw» (in webbrowser click on «See source code»)

As I can see the data is array object. So get the length as follows

var data_count = Object.keys(data).length; console.log(data_count); 

If you want to get length of object then use

Object.getOwnPropertyNames(data).length 

PHP Array to JavaScript Length, I want to get the length of this array inside JavaScript. So I did this: var address = ‘

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