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Php + js allows you to upload, crop, preview, and submit images.

Source: Internet
Author: User
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The first language used is php and the plug-in imgareaselect (). There are not many fancy styles. The index. php code is as follows:
Copy codeThe Code is as follows:
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head>
<Meta content = "text/html; charsets = UTF-8" http-equiv = "Content-Type">
<Link rel = "stylesheet" type = "text/css" href = "css/imgareaselect-default.css"/>
<Script type = "text/javascript" src = "scripts/jquery. min. js"> </script>
<Script type = "text/javascript" src = "scripts/jquery. imgareaselect. pack. js"> </script>
<Script type = "text/javascript">
Function preview (img, selection ){
$ ('# Selectbanner'). data ('x', selection. x1 );
$ ('# Selectbanner'). data ('y', selection. y1 );
$ ('# Selectbanner'). data ('w', selection. width );
$ ('# Selectbanner'). data ('h', selection. height );

Var scaleX = 100/(selection. width | 1 );
Var scale= 100/(selection. height | 1 );
$ ('# Ferret> img'hangzhou.css ({
Width: Math. round (scaleX * 512) + 'px ', // 512, 390 is the width and height of the image you upload
Height: Math. round (scaleY * 390) + 'px ',
MarginLeft: '-' + Math. round (scaleX * selection. x1) + 'px ',
MarginTop: '-' + Math. round (scaleY * selection. y1) + 'px'
});
}

// Insert a preview small image after the original image using jQuery syntax.
$ (Document). ready (function (){
$ ('<Div id = "ferret"> <div> 'salary .css ({
Float: 'left ',
Position: 'relative ',
Overflow: 'ddy ',
Width: '100px ',
Height: '100px'
})

. InsertAfter ($ ('# selectbanner '));

$ ('# Selectbanner'). imgAreaSelect ({
SelectionColor: 'Blue ', x1: 0, y1: 0, x2: 100, // initial position
MaxWidth: 500, y2: 100,
AspectRatio: '1: 1', // scaling ratio
SelectionOpacity: 0.2,
OnSelectEnd: preview // The function executed after cropping.
});
// Confirm the cropping
$ ("# SliceButton"). click (function (){
Var pic = $ ('# selectbanner'). attr ('src ');
// Alert (pic );
Var x, y, w, h;
$. Post (
"Cat. php", // (2) the code for this page will be attached.
{
X: $ ('# selectbanner'). data ('x '),
Y: $ ('# selectbanner'). data ('y '),
W: $ ('# selectbanner'). data ('W '),
H: $ ('# selectbanner'). data ('H '),
Pic: pic
},
Function (data ){
// Alert (data );
// Load the cropped image to # sure
If (data ){
$ ('# Sure'). attr ('src', data );
}
}
);
});
})
</Script>
<Title> crop and preview images </title>
</Head>
<Body>
<? Php
// Copy the image to the upload folder after uploading it
If ($ _ POST ){
$ Photo = $ _ FILES ['img '] ['name'];
$ Tmp_addr = $ _ FILES ['img '] ['tmp _ name'];

$ Path = 'upload /';
$ Type = array ("jpg", "gif", "jpeg", "png ");
$ Tool = substr (strrchr ($ photo, '.'), 1 );
If (! In_array (strtolower ($ tool), $ type )){
$ Text = implode ('.', $ type );
Echo "You can only upload the following types of files:", $ text, "<br> ";
} Else {
$ Filename = explode (".", $ photo); // you can specify the object name as an array.
$ Time = date ("m-d-H-I-s"); // obtain the current upload time
$ Filename [0] = $ time; // obtain the file name
$ Name = implode (".", $ filename); // name of the uploaded file
$ Uploadfile = $ path. $ name;
$ _ SESSION ['upfile'] = $ uploadfile; // address of the uploaded file name
Move_uploaded_file ($ tmp_addr, $ uploadfile );
}
// Echo $ uploadfile;
}
?>
<Div id = "s">
<! -- Upload an image -->
<Form action = "" method = "post" enctype = "multipart/form-data">
<Input type = "file" id = "img" name = "img" value = "" onclick = ""/>
<Input name = "submit" id = "submit" type = "submit" value = "submit" class = "submit"/>
</Form>
<! -- Display image -->
<? If (isset ($ _ SESSION ['upfile']) {?>
"Title =" mypic "/>
<? }?>
</Div>
<! -- Confirm cropping -->
<Div> <input type = "submit" id = "sliceButton" name = "sliceButton" value = "sliceButton"> </div>
<! -- Display the cropped image -->
<Div> </div>
</Body>
</Html>

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