PHPExcel read and write encapsulation class_PHP tutorial
For generating excel files and reading data, we can use the PHPExcel plug-in. Address: http://phpexcel.codeplex.com/releases/view/107442, choose the first one to download. Then the unzipped file directory is as follows:
Beginners should look at the examples first, the code is not difficult to understand. The names of methods are based on their names and their uses. After reading some examples, I thought of encapsulating it for convenience. Since I am just getting started. So I wrote a relatively entry-level package.
<span 1</span> <form method="post" enctype="multipart/form-data" > <span 2</span> <span 3</span> 文件:<input type="file" name="files" /></li> <span 4</span> <input type="submit" value="提交" /> <span 5</span> </form> <span 6</span> <span 7</span> <?<span php </span><span 8</span> <span 9</span> <span //</span><span set_include_path(get_include_path() . PATH_SEPARATOR . 'Excel/Classes/');</span> <span 10</span> <span 11</span> <span require_once</span> 'Excel/Classes/PHPExcel.php'<span ; </span><span 12</span> <span 13</span> <span class</span> myExcel <span extends</span><span PHPExcel{ </span><span 14</span> <span 15</span> <span private</span> <span $file</span><span ; </span><span 16</span> <span private</span> <span $fileType</span><span ; </span><span 17</span> <span 18</span> <span private</span> <span $objProperty</span>; <span //</span><span 文档属性对象 </span> <span 19</span> <span private</span> <span $objReader</span><span ; </span><span 20</span> <span private</span> <span $objWriter</span><span ; </span><span 21</span> <span 22</span> <span public</span> <span function</span><span __construct(){ </span><span 23</span> parent::<span __construct(); </span><span 24</span> <span 25</span> <span } </span><span 26</span> <span 27</span> <span /*</span> <span 28</span> <span * 设置文档属性 </span><span 29</span> <span * $property = array('title'=>'标题', 'creator' => '作者'); </span><span 30</span> <span */</span> <span 31</span> <span public</span> <span function</span> setProperty(<span $property</span><span ){ </span><span 32</span> <span $this</span>->objProperty = <span $this</span>-><span getProperties(); </span><span 33</span> <span if</span>(!<span empty</span>(<span $property</span>['creator']))<span $this</span>->objProperty->setCreator(<span $property</span>['creator'<span ]); </span><span 34</span> <span if</span>(!<span empty</span>(<span $property</span>['title'])) <span $this</span>->objProperty->setTitle(<span $property</span>['title'<span ]); </span><span 35</span> <span if</span>(!<span empty</span>(<span $property</span>['subject']))<span $this</span>->objProperty->setSubject(<span $property</span>['subject'<span ]); </span><span 36</span> <span if</span>(!<span empty</span>(<span $property</span>['laster']))<span $this</span>->objProperty->setLastModifiedBy(<span $property</span>['laster'<span ]); </span><span 37</span> <span if</span>(!<span empty</span>(<span $property</span>['description']))<span $this</span>->objProperty->setDescription(<span $property</span>['description'<span ]); </span><span 38</span> <span if</span>(!<span empty</span>(<span $property</span>['keyword']))<span $this</span>->objProperty->setKeywords(<span $property</span>['keyword'<span ]); </span><span 39</span> <span if</span>(!<span empty</span>(<span $property</span>['category']))<span $this</span>->objProperty->setCategory(<span $property</span>['category'<span ]); </span><span 40</span> <span } </span><span 41</span> <span 42</span> <span /*</span> <span 43</span> <span * 添加数据 </span><span 44</span> <span * $data = array( 'a1'=>'a111', 'b1'=>'b222', 'c1'=>'c111',); </span><span 45</span> <span * </span><span */</span> <span 46</span> <span public</span> <span function</span> addData(<span $data</span>, <span $index</span> = <span null</span><span ){ </span><span 47</span> <span $objAdd</span> = (<span $index</span>)? <span $this</span>->setActiveSheetIndex(<span $index</span>) : <span $this</span>-><span getActiveSheet(); </span><span 48</span> <span foreach</span>(<span $data</span> <span as</span> <span $key</span> => <span $val</span><span ){ </span><span 49</span> <span if</span>(<span empty</span>(<span $key</span>) || <span empty</span>(<span $val</span>)) <span continue</span><span ; </span><span 50</span> <span $objAdd</span>->setCellValue(<span $key</span>, <span $val</span><span ); </span><span 51</span> <span } </span><span 52</span> <span } </span><span 53</span> <span 54</span> <span //</span><span 生成文件</span> <span 55</span> <span public</span> <span function</span> saveFile(<span $file</span>, <span $path</span> = <span null</span>, <span $type</span> = 'Excel5'<span ){ </span><span 56</span> <span $this</span>->objWriter = PHPExcel_IOFactory::createWriter(<span $this</span>, <span $type</span><span ); </span><span 57</span> <span 58</span> <span $filePath</span> = <span $path</span>.<span $file</span><span ; </span><span 59</span> <span $this</span>->objWriter->save(<span $filePath</span><span ); </span><span 60</span> <span } </span><span 61</span> <span 62</span> <span /*</span><span -------------------------------------- 读取文件 ---------------------------- </span><span */</span> <span 63</span> <span 64</span> <span //</span><span 设置读对象</span> <span 65</span> <span private</span> <span function</span> setReader(<span $file</span>, <span $type</span> = <span null</span><span ){ </span><span 66</span> <span $this</span>-><span file</span> = <span $file</span><span ; </span><span 67</span> <span if</span>(<span $type</span><span ){ </span><span 68</span> <span $this</span>-><span fileType</span> = <span $type</span><span ; </span><span 69</span> <span $this</span>->objReader = PHPExcel_IOFactory::createReader(<span $type</span>)->load(<span $file</span><span ); </span><span 70</span> }<span else</span><span { </span><span 71</span> <span $this</span>-><span fileType</span> = PHPExcel_IOFactory::identify(<span $file</span><span ); </span><span 72</span> <span $this</span>->objReader = PHPExcel_IOFactory::load(<span $file</span><span ); </span><span 73</span> <span } </span><span 74</span> <span } </span><span 75</span> <span 76</span> <span 77</span> <span //</span><span 加载文件</span> <span 78</span> <span public</span> <span function</span> loadFile(<span $file</span>, <span $type</span> = <span null</span><span ){ </span><span 79</span> <span $this</span>->setReader(<span $file</span>, <span $type</span><span ); </span><span 80</span> <span $this</span>->sheetData = <span $this</span>->objReader->getActiveSheet()->toArray(<span null</span>,<span true</span>,<span true</span>,<span true</span><span ); </span><span 81</span> <span } </span><span 82</span> <span 83</span> <span //</span><span 返回需要的数据</span> <span 84</span> <span public</span> <span function</span> dataFormat(<span $meed</span>, <span $start</span> = 1, <span $end</span> = <span null</span><span ){ </span><span 85</span> <span foreach</span>(<span $this</span>->sheetData <span as</span> <span $line</span> => <span $row</span><span ){ </span><span 86</span> <span if</span>(<span $start</span> && <span $line</span> < <span $start</span>) <span continue</span><span ; </span><span 87</span> <span if</span>(<span $end</span> && <span $line</span> > <span $end</span>) <span break</span><span ; </span><span 88</span> <span foreach</span>(<span $row</span> <span as</span> <span $key</span> => <span $val</span><span ){ </span><span 89</span> <span if</span>(<span array_key_exists</span>(<span $key</span>, <span $meed</span><span )){ </span><span 90</span> <span $data</span>[<span $line</span>][<span $meed</span>[<span $key</span>]] = <span $val</span><span ; </span><span 91</span> <span } </span><span 92</span> <span } </span><span 93</span> <span } </span><span 94</span> <span return</span> <span array_merge</span>(<span $data</span><span ); </span><span 95</span> <span } </span><span 96</span> <span 97</span> <span //</span><span 工作表信息</span> <span 98</span> <span public</span> <span function</span> sheetInfo(<span $file</span> = <span null</span><span ){ </span><span 99</span> (<span $file</span>)? <span null</span> : <span $file</span> = <span $this</span>-><span file</span><span ; </span><span 100</span> <span $info</span> = <span $this</span>->objReader->listWorksheetInfo(<span $file</span><span ); </span><span 101</span> <span return</span> <span $info</span><span ; </span><span 102</span> <span } </span><span 103</span> <span 104</span> <span } </span><span 105</span> <span 106</span> <span 107</span> <span if</span>(<span $_FILES</span><span ){ </span><span 108</span> <span $upDir</span> = './upImg/'<span ; </span><span 109</span> <span $path</span> = <span $upDir</span>.'aaa.xls'<span ; </span><span 110</span> <span if</span>(!<span is_dir</span>(<span $upDir</span>)) <span mkdir</span>(<span $upDir</span>, 0777, <span true</span>) or <span exit</span>('上传目录创建失败!'<span ); </span><span 111</span> <span $temp</span> = <span $_FILES</span>['files']['tmp_name'<span ]; </span><span 112</span> <span move_uploaded_file</span>(<span $temp</span>, <span $path</span>);<span //</span><span 移到指定目录</span> <span 113</span> <span 114</span> <span $property</span> = <span array</span><span ( </span><span 115</span> 'title'=>'the title', <span 116</span> 'creator' => '作者' <span 117</span> <span ); </span><span 118</span> <span $data</span> = <span array</span><span ( </span><span 119</span> 'A1'=>'a1111', <span 120</span> 'A2'=>'a222', <span 121</span> 'B1'=>'b111', <span 122</span> 'E1'=>'e111', <span 123</span> 'f2'=>'f22222' <span 124</span> <span ); </span><span 125</span> <span 126</span> <span $data2</span> = <span array</span><span ( </span><span 127</span> <span 128</span> 'g2'=>'f22222', <span 129</span> 'h1'=>'hhh', <span 130</span> 'j1'=>'jjjjj' <span 131</span> <span ); </span><span 132</span> <span 133</span> <span $test</span> = <span new</span><span myExcel(); </span><span 134</span> <span //</span><span $test->setProperty($property); </span><span 135</span> <span //$test->addData($data, 0); </span><span 136</span> <span //$test->addData($data2); </span><span 137</span> <span //$test->saveFile('aaa.xls');</span> <span 138</span> <span 139</span> <span $test</span>->loadFile('upImg/aaa.xls'<span ); </span><span 140</span> <span $meed</span> = <span array</span>('A'=>'name','E'=>'age','F'=>'address'<span ); </span><span 141</span> <span $data</span> = <span $test</span>->dataFormat(<span $meed</span>, <span null</span>, 5<span ); </span><span 142</span> <span var_dump</span>(<span $data</span><span ); </span><span 143</span> <span } </span><span 144</span> ?>
The configuration of data return can be seen in the figure below:

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

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PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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