Does the include function work when the php file name and class name are the same?

File name: it turns out to be ValidationCode. modify php to validate. the verification code can be displayed normally after php, and the code is requested in the browser. show the verification code {code...} in the PHP file ...} code. php {code ...} file name: it turns out to be ValidationCode. php
After being changed to validate. php, the verification code is displayed normally,
The verification code is displayed in the request code. php file in the browser.

  width = $width;            $this->height = $height;            $this->num_chars = $num_chars;        }                function showImage(){            $this->createImage();            $this->drawBorder();            $this->drawChars();            $this->outPic();        }                //create canvas         function createImage(){            $this->image = imagecreate($this->width,$this->height);            //$rand_color = imagecolorallocate($this->image,rand(0,255),rand(0,255),rand(0,255));            $back = imagecolorallocate($this->image,0,0,0);            $border = imagecolorallocate($this->image,255,255,255);            imagefill($this->image,0,0,$back);            //imagefilledrectangle($thid->image,self::BORDER,self::BORDER,$this->width-self::BORDER,$this->height-self::BORDER,$border);            //imageline($this->image,1,1,100,100,$rand_color);            //$this->outPic();        }        //draw border        private function drawBorder(){            $outer_bg_color = imagecolorallocate($this->image,0,0,0);            $inner_bg_color = imagecolorallocate($this->image,255,255,255);            imagefill($this->image,0,0,$outer_bg_color);            imagefilledrectangle($this->image,self::BORDER,self::BORDER,$this->width-self::BORDER-1,$this->height-self::BORDER-1,$inner_bg_color);        }                    //create char content          function createChar(){            $rand_ascii="";            $rand_type = rand(0,2);            switch($rand_type){                case 0:                    $rand_ascii = rand(48,57);                     break;                case 1:                     $rand_ascii = rand(65,90);                   break;                case 2:                     $rand_ascii = rand(97,122);                   break;            }            $rand_str = sprintf("%c",$rand_ascii);            return $rand_str;        }                    //draw char         private function drawChars(){            $x = $this->width/$this->num_chars+1;            $y = $this->height/2;            for($index = 0; $index<$this->num_chars; $index++){                $rand_color = imagecolorallocate($this->image,rand(0,255),rand(0,255),rand(0,255));                imagechar($this->image,3,$x*$index+2,$y-$y/2,$this->createChar(),$rand_color);            }        }        //out pic        private function outPic(){            header("content-type:image/png");            imagepng($this->image);        }                 function __destruct(){             imagedestroy($this->image);         }    }        /*$code = new ValidationCode();    //echo $code->createChar();    $code->showImage();*/?>

Code. php

  createChar();    $code->showImage();  ?>

The problem has been closed. cause: you have found the cause of the problem.

Reply content:

File name: Originally ValidationCode. php
After being changed to validate. php, the verification code is displayed normally,
The verification code is displayed in the request code. php file in the browser.

  width = $width;            $this->height = $height;            $this->num_chars = $num_chars;        }                function showImage(){            $this->createImage();            $this->drawBorder();            $this->drawChars();            $this->outPic();        }                //create canvas         function createImage(){            $this->image = imagecreate($this->width,$this->height);            //$rand_color = imagecolorallocate($this->image,rand(0,255),rand(0,255),rand(0,255));            $back = imagecolorallocate($this->image,0,0,0);            $border = imagecolorallocate($this->image,255,255,255);            imagefill($this->image,0,0,$back);            //imagefilledrectangle($thid->image,self::BORDER,self::BORDER,$this->width-self::BORDER,$this->height-self::BORDER,$border);            //imageline($this->image,1,1,100,100,$rand_color);            //$this->outPic();        }        //draw border        private function drawBorder(){            $outer_bg_color = imagecolorallocate($this->image,0,0,0);            $inner_bg_color = imagecolorallocate($this->image,255,255,255);            imagefill($this->image,0,0,$outer_bg_color);            imagefilledrectangle($this->image,self::BORDER,self::BORDER,$this->width-self::BORDER-1,$this->height-self::BORDER-1,$inner_bg_color);        }                    //create char content          function createChar(){            $rand_ascii="";            $rand_type = rand(0,2);            switch($rand_type){                case 0:                    $rand_ascii = rand(48,57);                     break;                case 1:                     $rand_ascii = rand(65,90);                   break;                case 2:                     $rand_ascii = rand(97,122);                   break;            }            $rand_str = sprintf("%c",$rand_ascii);            return $rand_str;        }                    //draw char         private function drawChars(){            $x = $this->width/$this->num_chars+1;            $y = $this->height/2;            for($index = 0; $index<$this->num_chars; $index++){                $rand_color = imagecolorallocate($this->image,rand(0,255),rand(0,255),rand(0,255));                imagechar($this->image,3,$x*$index+2,$y-$y/2,$this->createChar(),$rand_color);            }        }        //out pic        private function outPic(){            header("content-type:image/png");            imagepng($this->image);        }                 function __destruct(){             imagedestroy($this->image);         }    }        /*$code = new ValidationCode();    //echo $code->createChar();    $code->showImage();*/?>

Code. php

  createChar();    $code->showImage();  ?>

Test: Entry Code

  createChar();$code->showImage();

File name:

Test results:

Conclusion: the file name is irrelevant to the class name during the include operation. The result is acceptable. I don't know why you can't. But I tested it.

It's really fake! The file name does not work like the class name. it's amazing! Are there any error messages?