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    ▪php 图片上传类代码       先来个简单的： 代码如下: <? //http://www. class upLoad{ public $length; //限定文件大小 public $file; //判断此类是用于图片上传还是文件上传 public $fileName; //文件名 public $fileTemp; //上传临时文件 publ.........

    ▪PHP源码之 ext/mysql扩展部分       我写过一个外部模块扩展，现在开始看PHP源码中的mysql扩展，它是可以被集成到PHP内部的，所以应该算是内置的扩展了。 该扩展需要用到mysql数据库提供的一些接口，所以需要安装了mysql，并.........

    ▪php 小乘法表实现代码       代码如下:<?php for($i=1;$i<10;$i++) { for($j=1;$j<=$i;$j++) { $result = $i*$j; if(strlen($result)==2) { echo "$j*$i=$result"; echo " "; } else { echo "$j*$i=$result"; echo "  "; } } echo "<br />"; } ?> 随便写写小程序.........

代码如下:

<?
//http://www.
class upLoad{
public $length; //限定文件大小
public $file; //判断此类是用于图片上传还是文件上传
public $fileName; //文件名
public $fileTemp; //上传临时文件
public $fileSize; //上传文件大小
public $error; //上传文件是否有错,php4没有
public $fileType; //上传文件类型
public $directory; //
public $maxLen;
public $errormsg;
function __construct($length,$file=true,$directory)
{
$this->maxLen=$length;
$this->length=$length*1024;
$this->file=$file; //true为一般文件，false为图片的判断
$this->directory=$directory;
}
public function upLoadFile($fileField)
{
$this->fileName=$fileField['name'];
$this->fileTemp=$fileField['tmp_name'];
$this->error=$fileField['error'];
$this->fileType=$fileField['type'];
$this->fileSize=$fileField['size'];
$pathSign = DIRECTORY_SEPARATOR; // /
if($this->file) //一般文件上传
{
$path = $this->_isCreatedDir($this->directory);//取得路径
if($path)//http://www.
{
$createFileType = $this->_getFileType($this->fileName);//设置文件类别
$createFileName=uniqid(rand()); //随机产生文件名
$thisDir=$this->directory.$pathSign.$createFileName.".".$createFileType;
if(@move_uploaded_file($this->fileTemp,$thisDir)) //把临时文件移动到规定的路径下
{
return $thisDir;
}
}
}else{ //图片上传
$path = $this->_isCreatedDir($this->directory);//取得路径
if($path)//路径存在//http://www.
{
$createFileType = $this->_getFileType($this->fileName);//设置文件类别
$createFileName=uniqid(rand());
return @move_uploaded_file($this->fileTemp,$this->directory.$pathSign.$createFileName.".".$createFileType) ? true : false;
}
}
}
public function _isBig($length,$fsize) //返回文件是否超过规定大小
{
return $fsize>$length ? true : false;
}
public function _getFileType($fileName) //获得文件的后缀
{
return end(explode(".",$fileName));
}
public function _isImg($fileType) //上传图片类型是否允许
{
$type=array("jpeg","gif","jpg","bmp");
$fileType=strtolower($fileType);
$fileArray=explode("/",$fileType);
$file_type=end($fileArray);
return in_array($file_type,$type);//http://www.
}
public function _isCreatedDir($path) //路径是否存在，不存在就创建
{
if(!file_exists($path))
{
return @mkdir($path,0755)?true:false; //权限755//
}
else
{
return true;
}
}
public function showError() //显示错误信息
{//http://www.
echo "<Script Language ='JavaScript'>\n history.back();\n alert(' $this->errormsg');\n </Script> \n";
exit();
}
}
class multiUpLoad extends upLoad{
public $FILES;
function __construct($arrayFiles,$length,$file=true,$directory)
{
$this->FILES=$arrayFiles;
parent::__construct($length,$file,$directory);
}
function upLoadMultiFile()
{
$arr=array();
if($this->_judge()||$this->_judge()=="no") //文件全部符合规格,就开始上传
{
foreach($this->FILES as $key=>$value)
{
$strDir=parent::upLoadFile($this->FILES[$key]);
array_push($arr, $strDir);
}
//http://www.
return $arr;
}else
{
return false;
}
}
function _judge()
{
if($this->file)
{
foreach($this->FILES as $key=>$value)
{
if($this->_isBig($this->length,$value['size']))
{
$this->errormsg="文件超过 $this->maxLen K";
parent::showError();
}
if($value['error']=UPLOAD_ERR_NO_FILE)
{
//$this->errormsg="上传文件出现错误";
//parent::showError();
return "no";
}
}
return true;
}else
{
//http://www.
foreach($this->FILES as $key=>$value)
{
if($this->_isBig($this->length,$value['size']))
{
$this->errormsg="图片超过$this->maxLen";
parent::showError();
}
if($value['error']!=0)
{
$this->errormsg="上传图片出现错误";
parent::showError();
}
if(!$this->_isImg($value['type']))
{
$this->errormsg="图片格式不对";
parent::showError();
}
}
return true;
}
}
}
?>

代码如下:

<?php
class UPImages {
var $annexFolder = "annex";//附件存放点，默认为：annex
var $smallFolder = "smallimg";//缩略图存放路径，注：必须是放在 $annexFolder下的子目录，默认为：smallimg
var $markFolder = "mark";//水印图片存放处
var $upFileType = "jpg gif png";//上传的类型，默认为：jpg gif png rar zip
var $upFileMax = 1024;//上传大小限制，单位是“KB”，默认为：1024KB
var $fontType;//字体
var $maxWidth = 500; //图片最大宽度
var $maxHeight = 600; //图片最大高度
function UPImages($annexFolder,$smallFolder,$includeFolder) {
$this->annexFolder = $annexFolder;
$this->smallFolder = $smallFolder;
$this->fontType = $includeFolder."/04B_08__.TTF";
}
function upLoad($inputName) {
$imageName = time();//设定当前时间为图片名称
if(@empty($_FILES[$inputName]["name"])) die(error("没有上传图片信息，请确认"));
$name = explode(".",$_FILES[$inputName]["name"]);//将上传前的文件以“.”分开取得文件类型
$imgCount = count($name);//获得截取的数量
$imgType = $name[$imgCount-1];//取得文件的类型
if(strpos($this->upFileType,$imgType) === false) die(error("上传文件类型仅支持 ".$this->upFileType." 不支持 ".$imgType));
$photo = $imageName.".".$imgType;//写入数据库的文件名
$uploadFile = $this->annexFolder."/".$photo;//上传后的文件名称
$upFileok = move_uploaded_file($_FILES[$inputName]["tmp_name"],$uploadFile);
if($upFileok) {
$imgSize = $_FILES[$inputName]["size"];
$kSize = round($imgSize/1024);
if($kSize > ($this->upFileMax*1024)) {
@unlink($uploadFile);
die(error("上传文件超过 ".$this->upFileMax."KB"));
}
} else {
die(error("上传图片失败，请确认你的上传文件不超过 $upFileMax KB 或上传时间超时"));
}
return $photo;
}
function getInfo($photo) {
$photo = $this->annexFolder."/".$photo;
$imageInfo = getimagesize($photo);
$imgInfo["width"] = $imageInfo[0];
$imgInfo["height"] = $imageInfo[1];
$imgInfo["type"] = $imageInfo[2];
$imgInfo["name"] = basename($photo);
return $imgInfo;
}
function smallImg($photo,$width=128,$height=128) {
$imgInfo = $this->getInfo($photo);
$photo = $this->annexFolder."/".$photo;//获得图片源
$newName = substr($imgInfo["name"],0,strrpos($imgInfo["name"], "."))."_thumb.jpg";//新图片名称
if($imgInfo["type"] == 1) {
$img = imagecreatefromgif($photo);
} elseif($imgInfo["type"] == 2) {
$img = imagecreatefromjpeg($photo);
} elseif($imgInfo["type"] == 3) {
$img = imagecreatefrompng($photo);
} else {
$img = "";
}
if(empty($img)) return False;
$width = ($width > $imgInfo["width"]) ? $imgInfo["width"] : $width;
$height = ($height > $imgInfo["height"]) ? $imgInfo["height"] : $height;
$srcW = $imgInfo["width"];
$srcH = $imgInfo["height"];
if ($srcW * $width > $srcH * $height) {
$height = round($srcH * $width / $srcW);
} else {
$width = round($srcW * $height / $srcH);
}
if (function_exists("imagecreatetruecolor")) {
$newImg = imagecreatetruecolor($width, $height);
ImageCopyResampled($newImg, $img, 0, 0, 0, 0, $width, $height, $imgInfo["width"], $imgInfo["height"]);
} else {
$newImg = imagecreate($width, $height);
ImageCopyResized($newImg, $img, 0, 0, 0, 0, $width, $height, $imgInfo["width"], $imgInfo["height"]);
}
if ($this->toFile) {
if (file_exists($this->annexFolder."/".$this->smallFolder."/".$newName)) @unlink($this->annexFolder."/".$this->smallFolder."/".$newName);
ImageJPEG($newImg,$this->annexFolder."/".$this->smallFolder."/".$newName);
return $this->annexFolder."/".$this->smallFolder."/".$newName;
} else {
ImageJPEG($newImg);
}
ImageDestroy($newImg);
ImageDestroy($img);
return $newName;
}
function waterMark($photo,$text) {
$imgInfo = $this->getInfo($photo);
$photo = $this->annexFolder."/".$photo;
$newName = substr($imgInfo["name"], 0, strrpos($imgInfo["name"], ".")) . "_mark.jpg";
switch ($imgInfo["type"]) {
case 1:
$img = imagecreatefromgif($photo);
break;
case 2:
$img = imagecreatefromjpeg($photo);
break;
case 3:
$img = imagecreatefrompng($photo);
break;
default:
return False;
}
if (empty($img)) return False;
$width = ($this->maxWidth > $imgInfo["width"]) ? $imgInfo["width"] : $this->maxWidth;
$height = ($this->maxHeight > $imgInfo["height"]) ? $imgInfo["height"] : $this->maxHeight;
$srcW = $imgInfo["width"];
$srcH = $imgInfo["height"];
if ($srcW * $width > $srcH * $height) {
$height = round($srcH * $width / $srcW);
} else {
$width = round($srcW * $height / $srcH);
}
if (function_exists("imagecreatetruecolor")) {
$newImg = imagecreatetruecolor($width, $height);
ImageCopyResampled($newImg, $img, 0, 0, 0, 0, $width, $height, $imgInfo["width"], $imgInfo["height"]);
} else {
$newImg = imagecreate($width, $height);
ImageCopyResized($newImg, $img, 0, 0, 0, 0, $width, $height, $imgInfo["width"], $imgInfo["height"]);
}
$white = imageColorAllocate($newImg, 255, 255, 255);
$black = imageColorAllocate($newImg, 0, 0, 0);
$alpha = imageColorAllocateAlpha($newImg, 230, 230, 230, 40);
ImageFilledRectangle($newImg, 0, $height-26, $width, $height, $alpha);
ImageFilledRectangle($newImg, 13, $height-20, 15, $height-7, $black);
ImageTTFText($newImg, 4.9, 0, 20, $height-14, $black, $this->fontType, $text[0]);
ImageTTFText($newImg, 4.9, 0, 20, $height-6, $black, $this->fontType, $text[1]);
if($this->toFile) {
if (file_exists($this->annexFolder."/".$this->markFolder."/".$newName)) @unlink($this->annexFolder."/".$this->markFolder."/".$newName);
ImageJPEG($newImg,$this->annexFolder."/".$this->markFolder."/".$newName);
return $this->annexFolder."/".$this->markFolder."/".$newName;
} else {
ImageJPEG($newImg);
}
ImageDestroy($newImg);
ImageDestroy($img);
return $newName;
}
}
?>

代码如下:

<?php
$annexFolder = "annex";
$smallFolder = "smallimg";
$markFolder = "mark";
$includeFolder = "include";
require("./".$includeFolder."/upfile.php");
$img = new UPImages($annexFolder,$smallFolder,$includeFolder);
$text = array("www.","all rights reserved");
if(@$_GET["go"]) {
$photo = $img->upLoad("upfile");
$img->maxWidth = $img->maxHeight = 350;//设置生成水印图像值
$img->toFile = true;
$newSmallImg = $img->smallImg($photo);
$newMark = $img->waterMark($photo,$text);
echo "<img src='".$newSmallImg."' border='0'><br><br>";
echo "<img src='".$newMark."' border='0'><br><br>";
echo "<a href='/blog_article/test.html'>继续上传</a>";
} else {
?>
<form method="post" action="/blog_article/test/go/go.html" enctype="multipart/form-data">
<input type="file" name="upfile"><br><br>
<input type="submit" value="上传">
</form>
<?php
}
?>

代码如下:

root 5297 0.0 0.0 5920 1416 pts/5 S 11:08 0:00 /bin/sh /usr/local/mysql/bin/mysqld_safe
mysql 5320 1.4 1.1 202728 23796 pts/5 Sl 11:08 1:47 /usr/local/mysql/libexec/mysqld --basedir=/usr/local/mysql --datadir=/usr/local/mysql/var --user=mysql --pid-file=/usr/local/mysql/var/tj1clnxweb0004.pid --skip-external-locking --port=3306 --socket=/tmp/mysql.sock

代码如下:

$sql = sprintf("select * from pet;");
$result = mysql_unbuffered_query($sql, $conn);
$rows = mysql_fetch_row($result);
var_dump($rows);
$sql = sprintf("select * from shop");
$result = mysql_unbuffered_query($sql, $conn);
$rows = mysql_fetch_row($result);
var_dump($rows);

代码如下:

$i = 1000000;
while($i--){
$sql = sprintf("select * from pet;");
$result = mysql_query($sql, $conn);
#$result = mysql_unbuffered_query($sql, $conn);
while($rows = mysql_fetch_row($result)){

}
if ($result){
mysql_free_result($result);
}
}

代码如下:

#define ZEND_VERIFY_RESOURCE(rsrc) \
if (!rsrc) { \
RETURN_FALSE; \
}
#define ZEND_FETCH_RESOURCE(rsrc, rsrc_type, passed_id, default_id, resource_type_name, resource_type) \
rsrc = (rsrc_type) zend_fetch_resource(passed_id TSRMLS_CC, default_id, resource_type_name, NULL, 1, resource_type); \
ZEND_VERIFY_RESOURCE(rsrc);
#define ZEND_FETCH_RESOURCE2(rsrc, rsrc_type, passed_id, default_id, resource_type_name, resource_type1, resource_type2) \
rsrc = (rsrc_type) zend_fetch_resource(passed_id TSRMLS_CC, default_id, resource_type_name, NULL, 2, resource_type1, resource_type2); \
ZEND_VERIFY_RESOURCE(rsrc);
#define ZEND_REGISTER_RESOURCE(rsrc_result, rsrc_pointer, rsrc_type) \
zend_register_resource(rsrc_result, rsrc_pointer, rsrc_type);
#define ZEND_GET_RESOURCE_TYPE_ID(le_id, le_type_name) \
if (le_id == 0) { \
le_id = zend_fetch_list_dtor_id(le_type_name); \
}

代码如下:

error_reporting(E_ALL);
#var_dump(mysql_get_host_info($conn));
#var_dump(mysql_get_proto_info($conn));
#var_dump(mysql_get_server_info($conn));
#var_dump(mysql_stat($conn));
#var_dump(mysql_errno($conn));
#var_dump(mysql_error($conn));
#var_dump(mysql_info($conn));

代码如下:

typedef struct st_mysql
{
NET net; /* Communication parameters */
gptr connector_fd; /* ConnectorFd for SSL */
char *host,*user,*passwd,*unix_socket,*server_version,*host_info,*info;
char *db;
struct charset_info_st *charset;
MYSQL_FIELD *fields;
MEM_ROOT field_alloc;
my_ulonglong affected_rows;
my_ulonglong insert_id; /* id if insert on table with NEXTNR */
my_ulonglong extra_info; /* Not used */
unsigned long thread_id; /* Id for connection in server */
unsigned long packet_length;
unsigned int port;
unsigned long client_flag,server_capabilities;
unsigned int protocol_version;
unsigned int field_count;
unsigned int server_status;
unsigned int server_language;
unsigned int warning_count;
struct st_mysql_options options;
enum mysql_status status;
my_bool free_me; /* If free in mysql_close */
my_bool reconnect; /* set to 1 if automatic reconnect */
/* session-wide random string */
char scramble[SCRAMBLE_LENGTH+1];
/*
Set if this is the original connection, not a master or a slave we have
added though mysql_rpl_probe() or mysql_set_master()/ mysql_add_slave()
*/
my_bool rpl_pivot;
/*
Pointers to the master, and the next slave connections, points to
itself if lone connection.
*/
struct st_mysql* master, *next_slave;
struct st_mysql* last_used_slave; /* needed for round-robin slave pick */
/* needed for send/read/store/use result to work correctly with replication */
struct st_mysql* last_used_con;
LIST *stmts; /* list of all statements */
const struct st_mysql_methods *methods;
void *thd;
/*
Points to boolean flag in MYSQL_RES or MYSQL_STMT. We set this flag
from mysql_stmt_close if close had to cancel result set of this object.
*/
my_bool *unbuffered_fetch_owner;
#if defined(EMBEDDED_LIBRARY) || defined(EMBEDDED_LIBRARY_COMPATIBLE) || MYSQL_VERSION_ID >= 50100
/* needed for embedded server - no net buffer to store the 'info' */
char *info_buffer;
#endif
} MYSQL;
typedef struct st_mysql_methods
{
my_bool (*read_query_result)(MYSQL *mysql);
my_bool (*advanced_command)(MYSQL *mysql,
enum enum_server_command command,
const char *header,
unsigned long header_length,
const char *arg,
unsigned long arg_length,
my_bool skip_check,
MYSQL_STMT *stmt);
MYSQL_DATA *(*read_rows)(MYSQL *mysql,MYSQL_FIELD *mysql_fields,
unsigned int fields);
MYSQL_RES * (*use_result)(MYSQL *mysql);
void (*fetch_lengths)(unsigned long *to,
MYSQL_ROW column, unsigned int field_count);
void (*flush_use_result)(MYSQL *mysql);
#if !defined(MYSQL_SERVER) || defined(EMBEDDED_LIBRARY)
MYSQL_FIELD * (*list_fields)(MYSQL *mysql);
my_bool (*read_prepare_result)(MYSQL *mysql, MYSQL_STMT *stmt);
int (*stmt_execute)(MYSQL_STMT *stmt);
int (*read_binary_rows)(MYSQL_STMT *stmt);
int (*unbuffered_fetch)(MYSQL *mysql, char **row);
void (*free_embedded_thd)(MYSQL *mysql);
const char *(*read_statistics)(MYSQL *mysql);
my_bool (*next_result)(MYSQL *mysql);
int (*read_change_user_result)(MYSQL *mysql, char *buff, const char *passwd);
int (*read_rows_from_cursor)(MYSQL_STMT *stmt);
#endif
} MYSQL_METHODS;

代码如下:

<?php
for($i=1;$i<10;$i++)
{
for($j=1;$j<=$i;$j++)
{
$result = $i*$j;
if(strlen($result)==2)
{
echo "$j*$i=$result";
echo " ";
}
else
{
echo "$j*$i=$result";
echo "  ";
}
}
echo "<br />";
}
?>