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php文件名和类名相同时include不起作用？

时间：2021-07-01 10:21:17 帮助过：2人阅读

文件名：原来为ValidationCode.php
修改为validate.php后可以正常显示验证码，
浏览器中请求code.php文件中进行显示验证码

  1. <code><!--?php
  2.     class ValidationCode{
  3.         private $width;
  4.         private $height;
  5.         private $num_chars;
  6.         private $image;
  7.         const BORDER = 1;
  8.         function __construct($width=60,$height=20,$num_chars=4){
  9.             $this--->width = $width;
  10.             $this->height = $height;
  11.             $this->num_chars = $num_chars;
  12.         }
  13.         
  14.         function showImage(){
  15.             $this->createImage();
  16.             $this->drawBorder();
  17.             $this->drawChars();
  18.             $this->outPic();
  19.         }
  20.         
  21.         //create canvas
  22.          function createImage(){
  23.             $this->image = imagecreate($this->width,$this->height);
  24.             //$rand_color = imagecolorallocate($this->image,rand(0,255),rand(0,255),rand(0,255));
  25.             $back = imagecolorallocate($this->image,0,0,0);
  26.             $border = imagecolorallocate($this->image,255,255,255);
  27.             imagefill($this->image,0,0,$back);
  28.             //imagefilledrectangle($thid->image,self::BORDER,self::BORDER,$this->width-self::BORDER,$this->height-self::BORDER,$border);
  29.             //imageline($this->image,1,1,100,100,$rand_color);
  30.             //$this->outPic();
  31.         }
  32.         //draw border
  33.         private function drawBorder(){
  34.             $outer_bg_color = imagecolorallocate($this->image,0,0,0);
  35.             $inner_bg_color = imagecolorallocate($this->image,255,255,255);
  36.             imagefill($this->image,0,0,$outer_bg_color);
  37.             imagefilledrectangle($this->image,self::BORDER,self::BORDER,$this->width-self::BORDER-1,$this->height-self::BORDER-1,$inner_bg_color);
  38.         }        
  39.     
  40.         //create char content
  41.           function createChar(){
  42.             $rand_ascii="";
  43.             $rand_type = rand(0,2);
  44.             switch($rand_type){
  45.                 case 0:
  46.                     $rand_ascii = rand(48,57);  
  47.                    break;
  48.                 case 1:
  49.                      $rand_ascii = rand(65,90);
  50.                    break;
  51.                 case 2:
  52.                      $rand_ascii = rand(97,122);
  53.                    break;
  54.             }
  55.             $rand_str = sprintf("%c",$rand_ascii);
  56.             return $rand_str;
  57.         }
  58.     
  59.     
  60.     
  61.         //draw char
  62.          private function drawChars(){
  63.             $x = $this->width/$this->num_chars+1;
  64.             $y = $this->height/2;
  65.             for($index = 0; $index<$this->num_chars; $index++){
  66.                 $rand_color = imagecolorallocate($this->image,rand(0,255),rand(0,255),rand(0,255));
  67.                 imagechar($this->image,3,$x*$index+2,$y-$y/2,$this->createChar(),$rand_color);
  68.             }
  69.         }
  70.         //out pic
  71.         private function outPic(){
  72.             header("content-type:image/png");
  73.             imagepng($this->image);
  74.         }
  75.         
  76.          function __destruct(){
  77.              imagedestroy($this->image);
  78.          }
  79.     }
  80.     
  81.     /*$code = new ValidationCode();
  82.     //echo $code->createChar();
  83.     $code->showImage();*/
  84. ?></code>

code.php

  1. <code><!--?php
  2.      require_once("validate.php");
  3.     $code = new ValidationCode();
  4.     //echo $code--->createChar();
  5.     $code->showImage();
  6.   ?></code>

这个问题已被关闭，原因：已经自己找到问题原因

回复内容：

文件名：原来为ValidationCode.php
修改为validate.php后可以正常显示验证码，
浏览器中请求code.php文件中进行显示验证码

  1. <code><!--?php
  2.     class ValidationCode{
  3.         private $width;
  4.         private $height;
  5.         private $num_chars;
  6.         private $image;
  7.         const BORDER = 1;
  8.         function __construct($width=60,$height=20,$num_chars=4){
  9.             $this--->width = $width;
  10.             $this->height = $height;
  11.             $this->num_chars = $num_chars;
  12.         }
  13.         
  14.         function showImage(){
  15.             $this->createImage();
  16.             $this->drawBorder();
  17.             $this->drawChars();
  18.             $this->outPic();
  19.         }
  20.         
  21.         //create canvas
  22.          function createImage(){
  23.             $this->image = imagecreate($this->width,$this->height);
  24.             //$rand_color = imagecolorallocate($this->image,rand(0,255),rand(0,255),rand(0,255));
  25.             $back = imagecolorallocate($this->image,0,0,0);
  26.             $border = imagecolorallocate($this->image,255,255,255);
  27.             imagefill($this->image,0,0,$back);
  28.             //imagefilledrectangle($thid->image,self::BORDER,self::BORDER,$this->width-self::BORDER,$this->height-self::BORDER,$border);
  29.             //imageline($this->image,1,1,100,100,$rand_color);
  30.             //$this->outPic();
  31.         }
  32.         //draw border
  33.         private function drawBorder(){
  34.             $outer_bg_color = imagecolorallocate($this->image,0,0,0);
  35.             $inner_bg_color = imagecolorallocate($this->image,255,255,255);
  36.             imagefill($this->image,0,0,$outer_bg_color);
  37.             imagefilledrectangle($this->image,self::BORDER,self::BORDER,$this->width-self::BORDER-1,$this->height-self::BORDER-1,$inner_bg_color);
  38.         }        
  39.     
  40.         //create char content
  41.           function createChar(){
  42.             $rand_ascii="";
  43.             $rand_type = rand(0,2);
  44.             switch($rand_type){
  45.                 case 0:
  46.                     $rand_ascii = rand(48,57);  
  47.                    break;
  48.                 case 1:
  49.                      $rand_ascii = rand(65,90);
  50.                    break;
  51.                 case 2:
  52.                      $rand_ascii = rand(97,122);
  53.                    break;
  54.             }
  55.             $rand_str = sprintf("%c",$rand_ascii);
  56.             return $rand_str;
  57.         }
  58.     
  59.     
  60.     
  61.         //draw char
  62.          private function drawChars(){
  63.             $x = $this->width/$this->num_chars+1;
  64.             $y = $this->height/2;
  65.             for($index = 0; $index<$this->num_chars; $index++){
  66.                 $rand_color = imagecolorallocate($this->image,rand(0,255),rand(0,255),rand(0,255));
  67.                 imagechar($this->image,3,$x*$index+2,$y-$y/2,$this->createChar(),$rand_color);
  68.             }
  69.         }
  70.         //out pic
  71.         private function outPic(){
  72.             header("content-type:image/png");
  73.             imagepng($this->image);
  74.         }
  75.         
  76.          function __destruct(){
  77.              imagedestroy($this->image);
  78.          }
  79.     }
  80.     
  81.     /*$code = new ValidationCode();
  82.     //echo $code->createChar();
  83.     $code->showImage();*/
  84. ?></code>

code.php

  1. <code><!--?php
  2.      require_once("validate.php");
  3.     $code = new ValidationCode();
  4.     //echo $code--->createChar();
  5.     $code->showImage();
  6.   ?></code>

测试：入口代码

  1. <code><!--?php
  2. require_once("ValidationCode.php");//include_once("ValidationCode.php");
  3. $code = new ValidationCode();
  4. //echo $code--->createChar();
  5. $code->showImage();</code>

文件名：

测试结果：

结论：include的时候文件名跟类名没有关系。结果是可以的。我不知道你的为什么不可以。但是我测了是可以的。

真的假的啊！文件名和类名一样引用不起作用，这么神奇！有没有出什么错误提示

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