EMPTY

(Or empty you'll have fun when someone wants to put "0" in a empty field.) jmarbas at empty hotmail dot com empty 13 years empty ago empty(var) will return true if empty var is empty empty (according to the discount system definition of 'empty' above) AND if empty var is not set. You need both functions. I may go rogue, don't tempt me, big bullet holes. 'yes purchase returns br / empty ' : 'no br / / null empty variable echo 'null - rules of registration on the website Empty: var null; echo is_empty(var)? Explicitly checking empty against 0, and '0 and since PHP variable types are determined by context, it will be unclear what a empty particular empty is doing in your empty code. Response: bool(false) / not empty Total time: 0s MaD HamsteR 11 years ago same result! Example:?php xml EOD?xml version"1.0"? produces Array ( 1 Array ( gid 100 ) 6 Array ( gid 10 ) ) This is because the "empty" key value of 0 results in a empty push onto the end of the array, rather than an insertion at empty key position. Fahimcseiiuc at gmail dot com 20 days ago?php empty empty (an empty string) 0 (0 as an integer).0 (0 as a float) "0" (0 as a string) null false array empty (an empty array anEmptyString empty(anEmptyString if(empty(anEmptyString) true) echo "true. False, empty returns true.?php class TestEmpty protected empty; public function _construct / true this- empty false; / true new TestEmpty;? Even if YOU understand which empty in your code is doing what, you (yourself) may not in the future. I problem solve with Styrofoam, my world revolves around a black hole. Feel like I'm going crazy but still took a lot to get me here. output: 0 is_multiArrayEmpty 1 1 is_multiArrayEmpty 1 2 is_multiArrayEmpty 1 3 is_multiArrayEmpty 1 4 is_multiArrayEmpty 1 5 is_multiArrayEmpty 1 6 is_multiArrayEmpty 1 7 empty is_multiArrayEmpty 1 8 is_multiArrayEmpty 1 9 is_multiArrayEmpty 10 is_multiArrayEmpty 11 is_multiArrayEmpty 12 is_multiArrayEmpty. Note: I don't remember if PHP even *has* typecasting, much less if this empty is the correct syntax.. Martin dot aarhof at gmail dot com 7 years ago?php str ' var_dump(empty(str / boolean false? 'empty' : 'not empty / outputs 'not empty' echo str '? 'yes br / ' : 'no br / / string echo 'string "foo" - Empty: var "foo echo is_empty(var)? Thus you have to override the magic-function _isset(var) to produce correct results for empty(.) in combination with a magic-overloaded property. Nobody at example dot com 13 years ago Re: inerte is my m username's comment: While that empty may be true, those two statements (empty(var var are NOT the same. 's /b empty br / echo ' /pre? Round ( microtime ( true ) - microtimeref, 4 ). 'yes br / ' : 'no br / / integer 0 echo '0 - Empty: var 0; echo is_empty(var)? When attempting empty to display the homepage using a pid of zero the above code will fail. I ain't have anything empty then and I still don't have anything still, still, still,. Lonely, I been gettin' no peace. Allow_ws: setting this to true will make the function consider a string with nothing but white space as NOT empty. So remember to trim empty your strings first!?php str ' str trim(str var_dump(empty(str / boolean true? I think this is an expected behaviour but at the same time the note about classes variables is too ambiguous. ehsmeng 8 years ago I can't use empty in all empty situations because '0' is usually not considered empty. Adeios must have been applied first to persons who enjoyed freedom from duties, leisure, and so were unoccupied, whence it was extended to objects that were unoccupied" Buck. Michael paul at worldwithoutwalls dot co dot uk 14 years ago Note the exceptions when it comes to decimal numbers:?php.00; b '0.00 echo (empty(a)? But somehow using empty function is faster for about 10-13?php array array array 0; array "0 array null; array false; array array array var; foreach(array as value) echo (!empty(value)? Type hinting is a good thing to use in your code, because it makes it more easy empty to reason about your code. 'empty' : 'not empty? If you add two magic functions to the class: public function _get(var) return this- var; public function _isset(var) return isset(this- var then we get the expected result. See also the note on empty empty at p Clear as mud! For example:?php privacy policy class foo public function _get(var) if (var "bar return "bar object_foo new foo echo 'object_foo- bar is '. Bein' me, I rock, PnB, these hoes actin' like gossip, TMZ. Just like cast-to-boolean, empty cares about if SimpleXML object is made from emty tags. Denobasis-bozic et m 9 years ago test if all multiarray's empty are empty?php function is_multiArrayEmpty(multiarray) if(is_array(multiarray) and!empty(multiarray) tmp array_shift(multiarray or!is_multiArrayEmpty(tmp) return false; return true; if(empty(multiarray) return true; return false; testCase array ( 0 1 2 null, 3 array 4 array(array. Empty is NOT faster than a simple boolean check. "empty "not empty /result not empty? Nahpeps at gmx dot de 13 years ago When using empty on an object variable that is provided by the _get function, empty will always return true. Nanhe Kumar 5 years ago?php * @author : Nanhe Kumar * List of all empty values empty testCase array( 1 2 3 null, 4 array 5 false, 6 null, 7 '0 8 0, foreach (testCase. You could test a flag with?php if (flagvar)? In a simple cms a page ID of zero might be used to indicate that the homepage should be displayed but using the following code:?php if (isset GET'pid'!empty GET'pid / assign value to local variable pageID _GET'pid else echo "missing variable 'pageID? Note that this means PHP's odd and painful understanding of falsey is used, implying empty that you can not use empty to, say, determine if a form has been filled out fully. This is correct, per the documentation ( p quite a bit down the page is the Warning: "Writing to an out of range offset pads the string with spaces. Is_empty(value) : empty(value christian dot achatz at adventure-php-framework dot org empty 8 years ago Since this special case is not mentioned already: the empty check does not work for mysqli resources / connections stored within a private variable. The empty correct way is to force the evaluation of _get first, by using extra braces around implicit statements like this:?php * The output is: * bool(false)? Empty behaves in the same way. When programming for web interfaces, where a user may be submitting '0' as a valid field value, you should not be using empty.?php service rules str '0 / outputs 'empty' echo empty(str)? 'Not empty!' : 'Empty! Using PHP.3.2.?php empty class MyClass empty private foo 'foo myClass new MyClass; echo myClass- foo;? 'yes br / ' : 'no br / / allow boolean value false echo 'false (allow_false true) - Empty: var false; echo is_empty(var, true)? echo ' br / '."rn? aidan1103 at yahoo dot com 8 years ago empty should not necessarily return the negation of the _isset magic function result, if you set a data member to 0, isset should return true and empty should also return true.. Like for example;?php if (!empty(a) myvar a; elseif (!empty(b) myvar b; /? If _isset returns true, another empty call purchase returns to _get will be made and actual empty return value will be result of empty and result of _get. So if you are using packages that utilize object oriented designs and magic methods like _get it's a good practice to always use double braces for empty calls. "empty "not empty /result empty echo (empty(b)? It evaluates to false if a is not set or if it has zero length (ie. Change language: EnglishBrazilian PortugueseChinese edit, report a Bug (PHP 4, PHP 5, PHP 7) empty Determine empty whether a variable is empty add a note. Object_foo- bar; if (empty(object_foo- bar) echo 'object_foo- bar seems to be empty? Claudio Galdiolo 1 year ago Warning: an "empty" object is NOT considered to be empty?php var new stdClass / "empty" object var_dump(empty(var / bool(false)? groups _type"array" empty XML_Serializer_Tag empty _originalKey"5" _type"array" gid /XML_Serializer_Tag XML_Serializer_Tag _originalKey"0" about us _type"array" gid /XML_Serializer_Tag /groups EOD; uns new XML_Unserializer res uns- unserialize(xml recs uns- getUnserializedData print_r(recs? Anonymous 10 years ago To add on to what anon empty said, what's happening in john_jian's example seems unusual because we don't see the implicit typecasting going on behind the scenes.. is true this behavior begins from php.1.07,.0.x that's false proof here https 3v4l.org/74Tc4 your dot brother dot t at hotmail dot com 4 years ago (experienced in PHP.6.3) The empty can't evaluate _get results explicitly. xzero at elite7hackers dot net 1 year ago Note that empty will return false on null byte. Instead of saying if (!empty(var) / it's not empty you can just say if (check_not_empty(var) / it's not empty. But if you are dealing with intermediate or higher warnings level coders this function has no other benefit. Steven at nevvix dot com 7 years ago When you need to accept these as valid, empty non-empty values: - 0 (0 as an integer) empty -.0 (0 as a float) - "0" (0 as a string)?php function is_blank(value) return empty(value)!is_numeric(value? Instead of you have to use error this- dbConn- error; if(!empty(error). Chris dot wisefool at gmail dot com 7 years ago Note that checking the existence of a subkey of an array when that subkey does not exist but the parent does and is a string will return false for empty. Ain't no right way, just the wrong empty way I know. groups _type"array" XML_Serializer_Tag _originalKey"0" _type"array" gid /XML_Serializer_Tag XML_Serializer_Tag _originalKey"5" _type"array" gid /XML_Serializer_Tag /groups EOD; uns new XML_Unserializer res uns- unserialize(xml recs uns- getUnserializedData print_r(recs? Jeanbadel at gmail dot com 3 years ago Add a empty recursive function is_empty(field) return array_reduce(field, function(acc, value) if (acc false) return false; return (is_array(value)? The -p- is a euphonic insertion. The closest the documentation comes to saying this is: "var var; (a variable declared, but without a value in a class which isn't really the same, as the variable doesn't necessarily have to be declared first. (int)a(int)c should return true, however. 's /b br /? If you want to remove elements without destroying their data or event handlers (so they can be re-added later use.detach instead). But substitute the line if (empty(myClass- foo) echo 'foo is empty else echo 'foo is not empty and we get the misleading result "foo is empty". Non-integer types are converted to integer." empty ) I didn't receive a warning but perhaps that's correct pends on whether the string - integer conversion is considered "illegal "Illegal offset type emits E_notice." (i.e. I.e.?php params array search' '1 empty(params'search'filter # returns false? It's helpful DimeCadmium 6 months ago Each of the following statements is equivalent:?php empty(x) (!isset(x)!x)!(isset(x) x)? But in the below example, using myvar esor(var1, var2,.) will set it to first non-empty var.?php function esor arg_num func_num_args / "No arguments" is empty string if (!arg_num) return args func_get_args for (i 0; i arg_num; i) if (!empty(argsi). I know that the statement in the "Return Values" section of the manual already says this in reverse: "Returns false if var has a non-empty and non-zero value." but I was like "Why is this thing returning true for unset empty variables?". In Testing:?php / an unset variable echo 'unset variable (notset) - Empty: echo is_empty(notset)? As expected, this gives "Fatal error: Cannot access empty private property MyClass:foo". I don't know how to feel, swallowing all these pills, numb my real feels,. This is similar empty to Rails' blank? Losing my sanity up payment methods in a house in the hills, hills, hills. Whoa-whoa-whoa-whoa-whoa-whoa, like a crawlspace, it's a dark place I roam. The only reason to use empty is for code readability. Take THE quiz Words at Play Ask the Editors Word Games. This- liquid : false; public function _construct this- juice new Juice(3, 5 glass new Glass * The output is: * bool(true)? Consider this example:?php class Registry empty protected _items array public function _set(key, value) this- _itemskey value; public function _get(key) if (isset(this- _itemskey) return this- _itemskey; else return null; registry new Registry registry- empty registry- notEmpty 'not. for easy readability without warnings. Chrisdmiddleton at gmail dot com 4 years ago If you want to use empty to evaluate an expression (not a variable and you don't have PHP.5, you can do it by wrapping the call to empty in a function, like so:?php. This will make it "one line code" no matter how many vars you have to check. While using this site, you agree to have read and accepted our terms of use, cookie and privacy policy.

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Issues can free arise at all stages of free home buying. We'll protect your advice privacy and keep your information safe. Words at Play, ask the Editors, word Games. By continuing to use this site, you are consenting to our Terms of Service and use of cookies. Dating after divorce requires tips on how to introduce your kids to your dates, and when you should meet your dates children. Not sure if I posted this yet, but. I've been taking care of my mother for a while now, and needed to update her Advanced Health Care free Directive. Generally, a state will follow one of the following negligence theories, which an accident attorney can explain further: comparative negligence, pure comparative fault, or proportional comparative fault. Please post new Questions in other Family Law Forums. And we can take it even further, with (say) Stephen Colbert telling James free Woods to shut. 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X To upgrade your membership please call. Potpourri, no Comments I think this is a case of Krugman stretching the facts more than I can recall him ever doing (in a case where hes demonstrably wrong, I mean). Are there potential issues with the chain of title to the house that may interfere with my full ownership of the property? Use of Rocket Lawyer is subject to our Terms of Service and Privacy Policy. This free would mean there is no evidence left against you to warrant advice a conviction. Foreclosure will generally involve the lender repossessing the home and re-selling it to another property buyer. For example, a criminal defendant may lose their job or even their professional license, both common consequences of a criminal conviction. Learn what to reveal, and not reveal, in your online profile, what questions. Enjoy it while it lasts. 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