回答編集履歴
2
ちょうせい
test
CHANGED
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@@ -53,6 +53,8 @@
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53
53
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const list=[];
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document.querySelector('.droparea').addEventListener('change',e=>{
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list.length=0;
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var target=e.target;
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1
chousei
test
CHANGED
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@@ -1,5 +1,149 @@
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1
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-
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1
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+
こんな感じで
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2
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3
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-
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3
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```javascript
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4
4
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5
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<?PHP
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6
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+
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7
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print_r($_FILES);//自分自身に送ってファイルを確認する
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8
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9
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?>
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10
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11
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<style>
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.droppable{
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15
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border:1px solid;
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position:relative;
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height:300px;
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}
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.droparea{
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position:absolute;
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top:0;
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width:100%;
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height:100%;;
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opacity:0;
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background-Color:lime;
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}
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#preview img{
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max-width:100px;
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max-height:100px;
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}
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</style>
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<script>
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window.addEventListener('DOMContentLoaded', ()=>{
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53
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const list=[];
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document.querySelector('.droparea').addEventListener('change',e=>{
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var target=e.target;
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document.querySelector('#preview').textContent="";
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[...target.files].forEach((file,idx)=>{
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if(file !==undefined){
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var fr = new FileReader();
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fr.addEventListener('load',e=>{
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var type=file.type;
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var name=file.name;
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if(["image/jpeg","image/gif","image/png"].includes(type)){
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var blob=new Blob([e.target.result],{type});
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var binary=String.fromCharCode.apply("",new Uint8Array(e.target.result));
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var base64="data:"+file.type+";base64,"+btoa(binary);
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var img=Object.assign(document.createElement('img'),{src:base64});
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list.push({blob,name});
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img.addEventListener('click',()=>{
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list[idx]=false;
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console.log(list);
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img.remove();
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});
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document.querySelector('#preview').appendChild(img);
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96
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97
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}else{
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98
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99
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target.value="";
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100
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}
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102
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});
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105
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fr.readAsArrayBuffer(file);
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106
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107
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}
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108
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109
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});
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110
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111
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});
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document.addEventListener('submit',(e)=>{
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document.querySelector('[type=file]').disabled=true;
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});
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118
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119
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document.addEventListener('formdata',(e)=>{
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120
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121
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list.forEach(x=>{
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122
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if(x) e.formData.append(document.querySelector('[type=file]').name,x.blob,x.name);
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124
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125
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});
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126
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127
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});
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128
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129
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});
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130
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131
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</script>
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132
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133
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<form method="post" enctype="multipart/form-data">
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134
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5
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-
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135
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<div class="droppable">
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136
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+
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137
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+
<div>ドロップして</div>
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138
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+
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139
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<input type="file" class="droparea" name="myfile[]" multiple>
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140
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+
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141
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</div>
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142
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+
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143
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<input type="submit">
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144
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+
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145
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<div id="preview"></div>
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146
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+
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147
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+
</form>
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148
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+
|
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149
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+
```
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