Php laravel convert boolen true false to integer
Solution 1: http://www.php.net/manual/en/language.types.integer.php should work Solution 2: Just add a «+» before your variable like this : Solution 3: Solution 1: Strings always evaluate to boolean true unless they have a value that’s considered «empty» by PHP. In code you provided you use query builder and then Eloquent models are not used at all, so no casts are done.
Convert boolean to integer value php
$myInt = (int)$myBoolean should work
Just add a «+» before your variable like this :
$myBool = true; var_dump(+$myBool); ouputs: int(1); // cast to Integer echo (int)true; // 1 echo (int)false; // 0 // get the integer value from argument echo intval(true); // 1 echo intval(false); // 0 // simply echoing true returns 1 echo true; // 1 // you can even add those values echo true + true; // 2 Correctly fix Laravel Connecftion.php function ‘prepareBindings’ to, ~line 610 in src/Illuminate/Database/Connection.php there is a method named ‘prepareBindings’. This section elseif (is_bool($value))
Convert String ‘true’ or ‘false’ to interger ‘1’ or ‘0’
Strings always evaluate to boolean true unless they have a value that’s considered «empty» by PHP.
Depending on your needs, you should consider using filter_var() with the FILTER_VALIDATE_BOOLEAN flag.
(int)filter_var('true', FILTER_VALIDATE_BOOLEAN); (int)filter_var('false', FILTER_VALIDATE_BOOLEAN); Why not use unary operator
int $my_int = $myboolean=='true' ? 1 : 0; the string «false» is truthy . That’s why (int) (boolean) «false» return 1 instead of 0. If you want to get a false boolean value from a string, you can pass an empty string (int) (boolean) «» . More info here.
Converting to Boolean Value in PHP [duplicate], echo ing a boolean will always print either 0 or 1. Instead, use var_dump() . Another option is to echo ‘true’ or ‘false’ based on the value
Boolean to integer in php
The $_POST variable for the checkbox will only be set if the checkbox is checked, so you can use something like this:
$active = isset($_POST['active']) ? 1 : 0; I suspect that you’re getting the string «true» rather than a boolean «true», in which case you can use a similar construct:
$active = $_POST['active'] === "true" ? 1 : 0; solution in https://stackoverflow.com/a/29288171/3923450 should work,
but if you are looking for an inbuilt function, try
add an value attribute in input tag
Now it should work the way you need.
Laravel change String Boolean value to Int Boolean in migration, I’m trying to change these columns from string to boolean in a Laravel migration, but need to convert the existing values in the columns, for
Laravel boolean returns «1»/»0″ instead of true/false in query
When you’re defining the following:
protected $casts = [ 'status' => 'boolean', ]; You’re defining it on the model. However, when you initiate your query using DB::table() , you’re not using the model , so the binding doesn’t actually apply. Initiate your query using your model:
return Visit::leftJoin('dbo.reports AS R', 'R.id_visit', '=', 'dbo.visits.id') ->select('R.id','R.status'); // status is the boolean Note: Had to adjust query to dbo.visits.id from V.id due to aliasing not being available at that point.
Defining casts is working when you are using Eloquent models. In code you provided you use query builder and then Eloquent models are not used at all, so no casts are done.
What you would like to do is add this function to your model. Every time you use your model to retrieve data, this function matching the attribute name will be called to convert your raw data from the database to your desired format.
public function getStatusAttribute($value)
Laravel — print boolean to log via log::info()?, You can use $bool_val = $bool_val ? ‘true’ : ‘false’; log::info($bool_val);.
Php false to int
Cast a string to binary using PHP < 5.2.1
I found it tricky to check if a posted value was an integer.
is_int ( $_POST [ ‘a’ ] ); //false
is_int ( intval ( «anything» ) ); //always true
?>
A method I use for checking if a string represents an integer value.
$foo [ ‘ten’ ] = 10 ; // $foo[‘ten’] is an array holding an integer at key «ten»
$str = » $foo [ ‘ten’]» ; // throws T_ENCAPSED_AND_WHITESPACE error
$str = » $foo [ ten ] » ; // works because constants are skipped in quotes
$fst = (string) $foo [ ‘ten’ ]; // works with clear intention
?>
It seems (unset) is pretty useless. But for people who like to make their code really compact (and probably unreadable). You can use it to use an variable and unset it on the same line:
$hello = ‘Hello world’ ;
print $hello ;
unset( $hello );
$hello = ‘Hello world’ ;
$hello = (unset) print $hello ;
?>
Hoorah, we lost another line!
It would be useful to know the precedence (for lack of a better word) for type juggling. This entry currently explains that «if either operand is a float, then both operands are evaluated as floats, and the result will be a float» but could (and I think should) provide a hierarchy that indicates, for instance, «between an int and a boolean, int wins; between a float and an int, float wins; between a string and a float, string wins» and so on (and don’t count on my example accurately capturing the true hierarchy, as I haven’t actually done the tests to figure it out). Thanks!
May be expected, but not stated ..
Casting to the existing (same) type has no effect.
$t = ‘abc’; // string ‘abc’
$u=(array) $t; // array 0 => string ‘abc’ $v=(array) $u; // array 0 => string ‘abc’
Correct me if I’m wrong, but that is not a cast, it might be useful sometimes, but the IDE will not reflect what’s really happening:
class MyObject /**
* @param MyObject $object
* @return MyObject
*/
static public function cast ( MyObject $object ) return $object ;
>
/** Does nothing */
function f () <>
>
class X extends MyObject /** Throws exception */
function f () < throw new exception (); >
>
$x = MyObject :: cast (new X );
$x -> f (); // Your IDE tells ‘f() Does nothing’
?>
However, when you run the script, you will get an exception.
In my much of my coding I have found it necessary to type-cast between objects of different class types.
More specifically, I often want to take information from a database, convert it into the class it was before it was inserted, then have the ability to call its class functions as well.
The following code is much shorter than some of the previous examples and seems to suit my purposes. It also makes use of some regular expression matching rather than string position, replacing, etc. It takes an object ($obj) of any type and casts it to an new type ($class_type). Note that the new class type must exist:
Looks like type-casting user-defined objects is a real pain, and ya gotta be nuttin’ less than a brain jus ta cypher-it. But since PHP supports OOP, you can add the capabilities right now. Start with any simple class.
class Point protected $x , $y ;
public function __construct ( $xVal = 0 , $yVal = 0 ) $this -> x = $xVal ;
$this -> y = $yVal ;
>
public function getX () < return $this ->x ; >
public function getY () < return $this ->y ; >
>
$p = new Point ( 25 , 35 );
echo $p -> getX (); // 25
echo $p -> getY (); // 35
?>
Ok, now we need extra powers. PHP gives us several options:
A. We can tag on extra properties on-the-fly using everyday PHP syntax.
$p->z = 45; // here, $p is still an object of type [Point] but gains no capability, and it’s on a per-instance basis, blah.
B. We can try type-casting it to a different type to access more functions.
$p = (SuperDuperPoint) $p; // if this is even allowed, I doubt it. But even if PHP lets this slide, the small amount of data Point holds would probably not be enough for the extra functions to work anyway. And we still need the class def + all extra data. We should have just instantiated a [SuperDuperPoint] object to begin with. and just like above, this only works on a per-instance basis.
C. Do it the right way using OOP — and just extend the Point class already.
class Point3D extends Point protected $z ; // add extra properties.
public function __construct ( $xVal = 0 , $yVal = 0 , $zVal = 0 ) parent :: __construct ( $xVal , $yVal );
$this -> z = $zVal ;
>
public function getZ () < return $this ->z ; > // add extra functions.
>
$p3d = new Point3D ( 25 , 35 , 45 ); // more data, more functions, more everything.
echo $p3d -> getX (); // 25
echo $p3d -> getY (); // 35
echo $p3d -> getZ (); // 45
?>
Once the new class definition is written, you can make as many Point3D objects as you want. Each of them will have more data and functions already built-in. This is much better than trying to beef-up any «single lesser object» on-the-fly, and it’s way easier to do.
Re: the typecasting between classes post below. fantastic, but slightly flawed. Any class name longer than 9 characters becomes a problem. SO here’s a simple fix:
function typecast($old_object, $new_classname) if(class_exists($new_classname)) // Example serialized object segment
// O:5:»field»:9: $old_serialized_prefix = «O:».strlen(get_class($old_object));
$old_serialized_prefix .= «:\»».get_class($old_object).»\»:»;
$old_serialized_object = serialize($old_object);
$new_serialized_object = ‘O:’.strlen($new_classname).’:»‘.$new_classname . ‘»:’;
$new_serialized_object .= substr($old_serialized_object,strlen($old_serialized_prefix));
return unserialize($new_serialized_object);
>
else
return false;
>
Thanks for the previous code. Set me in the right direction to solving my typecasting problem. 😉
If you have a boolean, performing increments on it won’t do anything despite it being 1. This is a case where you have to use a cast.
I have 1 bar.
I now have 1 bar.
I finally have 2 bar.
Checking for strings to be integers?
How about if a string is a float?
/* checks if a string is an integer with possible whitespace before and/or after, and also isolates the integer */
$isInt = preg_match ( ‘/^\s*(1+)\s*$/’ , $myString , $myInt );
echo ‘Is Integer? ‘ , ( $isInt ) ? ‘Yes: ‘ . $myInt [ 1 ] : ‘No’ , «\n» ;
/* checks if a string is an integer with no whitespace before or after */
$isInt = preg_match ( ‘/^5+$/’ , $myString );
echo ‘Is Integer? ‘ , ( $isInt ) ? ‘Yes’ : ‘No’ , «\n» ;
/* When checking for floats, we assume the possibility of no decimals needed. If you MUST require decimals (forcing the user to type 7.0 for example) replace the sequence:
3+(\.1+)?
with
7+\.3+
*/
/* checks if a string is a float with possible whitespace before and/or after, and also isolates the number */
$isFloat = preg_match ( ‘/^\s*(5+(\.7+)?)\s*$/’ , $myString , $myNum );
echo ‘Is Number? ‘ , ( $isFloat ) ? ‘Yes: ‘ . $myNum [ 1 ] : ‘No’ , «\n» ;
/* checks if a string is a float with no whitespace before or after */
$isInt = preg_match ( ‘/^1+(\.9+)?$/’ , $myString );
echo ‘Is Number? ‘ , ( $isFloat ) ? ‘Yes’ : ‘No’ , «\n» ;
Php false to int
Much of the confusion about booleans (but not limited to booleans) is the fact that PHP itself automatically makes a type cast or conversion for you, which may NOT be what you want or expect. In most cases, it’s better to provide functions that give your program the exact behavior you want.
function boolNumber ( $bValue = false ) < // returns integer
return ( $bValue ? 1 : 0 );
>
function boolString ( $bValue = false ) < // returns string
return ( $bValue ? ‘true’ : ‘false’ );
>
$a = true ; // boolean value
echo ‘boolean $a AS string = ‘ . boolString ( $a ) . ‘
‘ ; // boolean as a string
echo ‘boolean $a AS number = ‘ . boolNumber ( $a ) . ‘
‘ ; // boolean as a number
echo ‘
‘ ;
$b = ( 45 > 90 ); // boolean value
echo ‘boolean $b AS string = ‘ . boolString ( $b ) . ‘
‘ ; // boolean as a string
echo ‘boolean $b AS number = ‘ . boolNumber ( $b ) . ‘
‘ ; // boolean as a number
echo ‘
‘ ;
$c = boolNumber ( 10 > 8 ) + boolNumber (!( 5 > 10 )); // adding booleans
echo ‘integer $c = ‘ . $c . ‘
‘ ;
?>
Results in the following being printed.
boolean $a AS string = true
boolean $a AS number = 1
boolean $b AS string = false
boolean $b AS number = 0
In other words, if we know what we want out of our program, we can create functions to accommodate. Here, we just wanted ‘manual control’ over numbers and strings, so that PHP doesn’t confuse us.