php module reference, php
<span><span> 1</span> <?<span>php
</span><span> 2</span> <span>//</span><span>数据库连接类</span>
<span> 3</span> <span>class</span><span> ConnDB{
</span><span> 4</span>
<span> 5</span> <span>var</span> <span>$dbtype</span><span>;
</span><span> 6</span> <span>var</span> <span>$host</span><span>;
</span><span> 7</span> <span>var</span> <span>$user</span><span>;
</span><span> 8</span> <span>var</span> <span>$pwd</span><span>;
</span><span> 9</span> <span>var</span> <span>$dbname</span><span>;
</span><span> 10</span>
<span> 11</span> <span>//</span><span>构造方法</span>
<span> 12</span> <span>function</span> ConnDB(<span>$dbtype</span>,<span>$host</span>,<span>$user</span>,<span>$pwd</span>,<span>$dbname</span><span>){
</span><span> 13</span> <span>$this</span>->dbtype=<span>$dbtype</span><span>;
</span><span> 14</span> <span>$this</span>->host=<span>$host</span><span>;
</span><span> 15</span> <span>$this</span>->user=<span>$user</span><span>;
</span><span> 16</span> <span>$this</span>->pwd=<span>$pwd</span><span>;
</span><span> 17</span> <span>$this</span>->dbname=<span>$dbname</span><span>;
</span><span> 18</span> <span> }
</span><span> 19</span>
<span> 20</span> <span>//</span><span>实现数据库的连接并返回连接对象</span>
<span> 21</span> <span>function</span><span> GetConnId(){
</span><span> 22</span>
<span> 23</span> <span>if</span>(<span>$this</span>->dbtype=="mysql" || <span>$this</span>->dbtype=="mssql"<span>){
</span><span> 24</span> <span>$dsn</span>="<span>$this</span>->dbtype:host=<span>$this</span>->host;dbname=<span>$this</span>->dbname"<span>;
</span><span> 25</span> }<span>else</span><span>{
</span><span> 26</span> <span>$dsn</span>="<span>$this</span>->dbtype:dbname=<span>$this</span>->dbname"<span>;
</span><span> 27</span> <span> }
</span><span> 28</span> <span>try</span><span> {
</span><span> 29</span> <span>$conn</span> = <span>new</span> PDO(<span>$dsn</span>, <span>$this</span>->user, <span>$this</span>->pwd); <span>//</span><span>初始化一个PDO对象，就是创建了数据库连接对象$pdo</span>
<span> 30</span> <span>$conn</span>->query("set names utf8"<span>);
</span><span> 31</span> <span>return</span> <span>$conn</span><span>;
</span><span> 32</span> } <span>catch</span> (PDOException <span>$e</span><span>) {
</span><span> 33</span> <span>die</span> ("Error!: " . <span>$e</span>->getMessage() . "<br/>"<span>);
</span><span> 34</span> <span> }
</span><span> 35</span>
<span> 36</span>
<span> 37</span> <span> }
</span><span> 38</span> <span>}
</span><span> 39</span>
<span> 40</span> <span>//</span><span>数据库管理类</span>
<span> 41</span> <span>class</span><span> AdminDB{
</span><span> 42</span>
<span> 43</span>
<span> 44</span> <span>function</span> ExecSQL(<span>$sqlstr</span>,<span>$conn</span><span>){
</span><span> 45</span>
<span> 46</span> <span>$sqltype</span>=<span>strtolower</span>(<span>substr</span>(<span>trim</span>(<span>$sqlstr</span>),0,6<span>));
</span><span> 47</span> <span>$rs</span>=<span>$conn</span>->prepare(<span>$sqlstr</span>); <span>//</span><span>准备查询语句</span>
<span> 48</span> <span>$rs</span>->execute(); <span>//</span><span>执行查询语句，并返回结果集</span>
<span> 49</span> <span>if</span>(<span>$sqltype</span>=="select"<span>){
</span><span> 50</span> <span>$array</span>=<span>$rs</span>->fetchAll(PDO::FETCH_ASSOC); <span>//</span><span>获取结果集中的所有数据</span>
<span> 51</span> <span>if</span>(<span>count</span>(<span>$array</span>)==0 || <span>$rs</span>==<span>false</span><span>)
</span><span> 52</span> <span>return</span> <span>false</span><span>;
</span><span> 53</span> <span>else</span>
<span> 54</span> <span>return</span> <span>$array</span><span>;
</span><span> 55</span> }<span>elseif</span> (<span>$sqltype</span>=="update" || <span>$sqltype</span>=="insert" || <span>$sqltype</span>=="delete"<span>){
</span><span> 56</span> <span>if</span>(<span>$rs</span><span>)
</span><span> 57</span> <span>return</span> <span>true</span><span>;
</span><span> 58</span> <span>else</span>
<span> 59</span> <span>return</span> <span>false</span><span>;
</span><span> 60</span> <span> }
</span><span> 61</span> <span> }
</span><span> 62</span> <span>}
</span><span> 63</span> <span>//</span><span>分页类</span>
<span> 64</span> <span>class</span><span> SepPage{
</span><span> 65</span> <span>var</span> <span>$rs</span><span>;
</span><span> 66</span> <span>var</span> <span>$pagesize</span><span>;
</span><span> 67</span> <span>var</span> <span>$nowpage</span><span>;
</span><span> 68</span> <span>var</span> <span>$array</span><span>;
</span><span> 69</span> <span>var</span> <span>$conn</span><span>;
</span><span> 70</span> <span>var</span> <span>$sqlstr</span><span>;
</span><span> 71</span> <span>function</span> ShowData(<span>$sqlstr</span>,<span>$conn</span>,<span>$pagesize</span>,<span>$nowpage</span>){ <span>//</span><span>定义方法</span>
<span> 72</span> <span>if</span>(!<span>isset</span>(<span>$nowpage</span>) || <span>$nowpage</span>=="") <span>//</span><span>判断变量值是否为空</span>
<span> 73</span> <span>$this</span>->nowpage=1; <span>//</span><span>定义每页起始页</span>
<span> 74</span> <span>else</span>
<span> 75</span> <span>$this</span>->nowpage=<span>$nowpage</span><span>;
</span><span> 76</span> <span>$this</span>->pagesize=<span>$pagesize</span>; <span>//</span><span>定义每页输出的记录数</span>
<span> 77</span> <span>$this</span>->conn=<span>$conn</span>; <span>//</span><span>连接数据库返回的标识</span>
<span> 78</span> <span>$this</span>->sqlstr=<span>$sqlstr</span>; <span>//</span><span>执行的查询语句</span>
<span> 79</span> <span>$offset</span>=(<span>$this</span>->nowpage-1)*<span>$this</span>-><span>pagesize;
</span><span> 80</span> <span>$sql</span>=<span>$this</span>->sqlstr." limit <span>$offset</span>, <span>$this</span>->pagesize"<span>;
</span><span> 81</span> <span>$result</span>=<span>$this</span>->conn->prepare(<span>$sql</span>); <span>//</span><span>准备查询语句</span>
<span> 82</span> <span>$result</span>->execute(); <span>//</span><span>执行查询语句，并返回结果集</span>
<span> 83</span> <span>$this</span>-><span>array</span>=<span>$result</span>->fetchAll(PDO::FETCH_ASSOC); <span>//</span><span>获取结果集中的所有数据</span>
<span> 84</span> <span>if</span>(<span>count</span>(<span>$this</span>-><span>array</span>)==0 || <span>$this</span>-><span>array</span>==<span>false</span><span>)
</span><span> 85</span> <span>return</span> <span>false</span><span>;
</span><span> 86</span> <span>else</span>
<span> 87</span> <span>return</span> <span>$this</span>-><span>array</span><span>;
</span><span> 88</span> <span> }
</span><span> 89</span>
<span> 90</span> <span>function</span> ShowPage(<span>$contentname</span>,<span>$utits</span>,<span>$anothersearchstr</span>,<span>$anothersearchstrs</span>,<span>$class</span><span>){
</span><span> 91</span> <span>$str</span>=""<span>;
</span><span> 92</span> <span>$res</span>=<span>$this</span>->conn->prepare(<span>$this</span>->sqlstr); <span>//</span><span>准备查询语句</span>
<span> 93</span> <span>$res</span>->execute(); <span>//</span><span>执行查询语句，并返回结果集</span>
<span> 94</span> <span>$this</span>-><span>array</span>=<span>$res</span>->fetchAll(PDO::FETCH_ASSOC); <span>//</span><span>获取结果集中的所有数据 </span>
<span> 95</span> <span>$record</span>=<span>count</span>(<span>$this</span>-><span>array</span>); <span>//</span><span>统计记录总数</span>
<span> 96</span>
<span> 97</span> <span>$pagecount</span>=<span>ceil</span>(<span>$record</span>/<span>$this</span>->pagesize); <span>//</span><span>计算共有几页</span>
<span> 98</span> <span>$str</span>.=<span>$contentname</span>." ".<span>$record</span>." ".<span>$utits</span>." 每页 ".<span>$this</span>->pagesize." ".<span>$utits</span>." 第 ".<span>$this</span>->nowpage." 页/共 ".<span>$pagecount</span>." 页"<span>;
</span><span> 99</span> <span>$str</span>.=" "<span>;
</span><span>100</span> <span>if</span>(<span>$this</span>->nowpage!=1<span>)
</span><span>101</span> <span>$str</span>.="<a href=".<span>$_SERVER</span>['PHP_SELF']."?page=1&page_type=".<span>$anothersearchstr</span>."¶meter2=".<span>$anothersearchstrs</span>." class=".<span>$class</span>.">首页</a>"<span>;
</span><span>102</span> <span>else</span>
<span>103</span> <span>$str</span>.="<font color='#555555'>首页</font>"<span>;
</span><span>104</span> <span>$str</span>.=" "<span>;
</span><span>105</span> <span>if</span>(<span>$this</span>->nowpage!=1<span>)
</span><span>106</span> <span>$str</span>.="<a href=".<span>$_SERVER</span>['PHP_SELF']."?page=".(<span>$this</span>->nowpage-1)."&page_type=".<span>$anothersearchstr</span>."¶meter2=".<span>$anothersearchstrs</span>." class=".<span>$class</span>.">上一页</a>"<span>;
</span><span>107</span> <span>else</span>
<span>108</span> <span>$str</span>.="<font color='#555555'>上一页</font>"<span>;
</span><span>109</span> <span>$str</span>.=" "<span>;
</span><span>110</span> <span>if</span>(<span>$this</span>->nowpage!=<span>$pagecount</span><span>)
</span><span>111</span> <span>$str</span>.="<a href=".<span>$_SERVER</span>['PHP_SELF']."?page=".(<span>$this</span>->nowpage+1)."&page_type=".<span>$anothersearchstr</span>."¶meter2=".<span>$anothersearchstrs</span>." class=".<span>$class</span>.">下一页</a>"<span>;
</span><span>112</span> <span>else</span>
<span>113</span> <span>$str</span>.="<font color='#555555'>下一页</font>"<span>;
</span><span>114</span> <span>$str</span>.=" "<span>;
</span><span>115</span> <span>if</span>(<span>$this</span>->nowpage!=<span>$pagecount</span><span>)
</span><span>116</span> <span>$str</span>.="<a href=".<span>$_SERVER</span>['PHP_SELF']."?page=".<span>$pagecount</span>."&page_type=".<span>$anothersearchstr</span>."¶meter2=".<span>$anothersearchstrs</span>." class=".<span>$class</span>.">尾页</a>"<span>;
</span><span>117</span> <span>else</span>
<span>118</span> <span>$str</span>.="<font color='#555555'>尾页</font>"<span>;
</span><span>119</span> <span>if</span>(<span>count</span>(<span>$this</span>-><span>array</span>)==0 || <span>$this</span>-><span>array</span>==<span>false</span><span>)
</span><span>120</span> <span>return</span> "无数据！"<span>;
</span><span>121</span> <span>else</span>
<span>122</span> <span>return</span> <span>$str</span><span>;
</span><span>123</span> <span> }
</span><span>124</span> <span>}
</span><span>125</span> <span>//</span><span>系统常用方法</span>
<span>126</span> <span>class</span><span> UseFun{
</span><span>127</span>
<span>128</span> <span>function</span> UnHtml(<span>$text</span><span>){
</span><span>129</span> <span>$content</span>=(<span>nl2br</span>(<span>htmlspecialchars</span>(<span>$text</span><span>)));
</span><span>130</span> <span>$content</span>=<span>str_replace</span>("[strong]","<strong>",<span>$content</span><span>);
</span><span>131</span> <span>$content</span>=<span>str_replace</span>("[/strong]","</strong>",<span>$content</span><span>);
</span><span>132</span> <span>$content</span>=<span>str_replace</span>("[em]","<em>",<span>$content</span><span>);
</span><span>133</span> <span>$content</span>=<span>str_replace</span>("[/em]","</em>",<span>$content</span><span>);
</span><span>134</span> <span>$content</span>=<span>str_replace</span>("[u]","<u>",<span>$content</span><span>);
</span><span>135</span> <span>$content</span>=<span>str_replace</span>("[/u]","</u>",<span>$content</span><span>);
</span><span>136</span>
<span>137</span>
<span>138</span> <span>$content</span>=<span>str_replace</span>("[font color=#FF0000]","<font color=#FF0000>",<span>$content</span><span>);
</span><span>139</span> <span>$content</span>=<span>str_replace</span>("[font color=#00FF00]","<font color=#00FF00>",<span>$content</span><span>);
</span><span>140</span> <span>$content</span>=<span>str_replace</span>("[font color=#0000FF]","<font color=#0000FF>",<span>$content</span><span>);
</span><span>141</span>
<span>142</span> <span>$content</span>=<span>str_replace</span>("[font face=楷体_GB2312]","<font face=楷体_GB2312>",<span>$content</span><span>);
</span><span>143</span> <span>$content</span>=<span>str_replace</span>("[font face=宋体]","<font face=新宋体>",<span>$content</span><span>);
</span><span>144</span> <span>$content</span>=<span>str_replace</span>("[font face=隶书]","<font face=隶书>",<span>$content</span><span>);
</span><span>145</span> <span>$content</span>=<span>str_replace</span>("[/font]","</font>",<span>$content</span><span>);
</span><span>146</span> <span>//</span><span>$content=str_replace(chr(32)," ",$content);</span>
<span>147</span> <span>$content</span>=<span>str_replace</span>("[font size=1]","<font size=1>",<span>$content</span><span>);
</span><span>148</span> <span>$content</span>=<span>str_replace</span>("[font size=2]","<font size=2>",<span>$content</span><span>);
</span><span>149</span> <span>$content</span>=<span>str_replace</span>("[font size=3]","<font size=3>",<span>$content</span><span>);
</span><span>150</span> <span>$content</span>=<span>str_replace</span>("[font size=4]","<font size=4>",<span>$content</span><span>);
</span><span>151</span> <span>$content</span>=<span>str_replace</span>("[font size=5]","<font size=5>",<span>$content</span><span>);
</span><span>152</span> <span>$content</span>=<span>str_replace</span>("[font size=6]","<font size=6>",<span>$content</span><span>);
</span><span>153</span>
<span>154</span> <span>$content</span>=<span>str_replace</span>("[FIELDSET][LEGEND]","<FIELDSET><LEGEND>",<span>$content</span><span>);
</span><span>155</span> <span>$content</span>=<span>str_replace</span>("[/LEGEND]","</LEGEND>",<span>$content</span><span>);
</span><span>156</span> <span>$content</span>=<span>str_replace</span>("[/FIELDSET]","</FIELDSET>",<span>$content</span><span>);
</span><span>157</span> <span>return</span> <span>$content</span><span>;
</span><span>158</span> <span> }
</span><span>159</span>
<span>160</span> <span>}
</span><span>161</span>
<span>162</span> ?></span>
Say the module .... I understand it too well, because of the php module php environment concept, the php environment consists of multiple modules It consists of modules used by php to implement certain functions, such as gd library, which is used to implement image operations. But I think said code blocks, or reuse code, look for php classes and go to www.phpclasses.org. There are 2 official projects, is called PEAR, and the other is is called PECL, which provides a lot of functional support, and Brothers have already started, I suggest take a look at zendframework.
source code copy web directory than bbs directory add link to the main page Message program in the bbs directory
The Continued Use of PHP: Reasons for Its EnduranceApr 19, 2025 am 12:23 AMWhat’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: Exploring Their Similarities and DifferencesApr 19, 2025 am 12:21 AMPHP 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 and Python: Different Paradigms ExplainedApr 18, 2025 am 12:26 AMPHP 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 and Python: A Deep Dive into Their HistoryApr 18, 2025 am 12:25 AMPHP 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.
Choosing Between PHP and Python: A GuideApr 18, 2025 am 12:24 AMPHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.
PHP and Frameworks: Modernizing the LanguageApr 18, 2025 am 12:14 AMPHP 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.
PHP's Impact: Web Development and BeyondApr 18, 2025 am 12:10 AMPHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip
How does PHP type hinting work, including scalar types, return types, union types, and nullable types?Apr 17, 2025 am 12:25 AMPHP 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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