PHP Data type conversions

PHP Data type conversions   PHP data type conversions are cast, and PHP data types that allow conversion are:   (int), (integer): converted to plastic   (float), (double), (real): converting to floating-point   (string): Converting to a string   (BOOL), (Boolean): Converting to a Boolean type   (array): Converting an array of   (object): Converting to an object   PHP Data types have three conversions:   before the variable to be converted with the target type enclosed in parentheses   use 3 specific types of conversion functions, intval (), Floatval (), Strval ()   Use common type Conversion functions Settype (mixed var,string type)     The first conversion mode: (int)   (bool)   (float)   (string)   ( Array) (object)     1.<?php     2 $num 1=3.14;     3 $num 2= (int) $num 1;     4.var_dump ($num 1); Output float (3.14)     5.var_dump ($num 2); Output int (3)     6.? >    The second mode of conversion:  intval ()  floatval ()  strval ()     1.<?php     2. $str = " 123.9abc ";     3. $int =intval ($STR);    //Convert value: 123     4 $float =floatval ($STR); Value after conversion: 123.9     5. $str =strval ($float);  //Convert after string: "123.9"      6.? > &NBSP;&NBSp The third mode of conversion:  settype ();     1.<?php     2. $num 4=12.8;     3 $FLG =settype ($num 4, "int");     4.var_dump ($FLG);  //output bool (true)     5.var_dump ($num 4); Output int     6.? >