How to solve the infinite loop in simple_html_dom execution?
<code>include('simple_html_dom/simple_html_dom.php');
$list_html = new simple_html_dom();
$list_html->load_file('http://www.yiichina.com/doc/guide/2.0/structure-applications');
var_dump($list_html->find('a.list-group-item',0));exit();
</code>After this code is executed, infinite dump data comes out of the page, like an infinite loop. How to solve it? The a.list-group-item element must exist. . .
Reply content:
<code>include('simple_html_dom/simple_html_dom.php');
$list_html = new simple_html_dom();
$list_html->load_file('http://www.yiichina.com/doc/guide/2.0/structure-applications');
var_dump($list_html->find('a.list-group-item',0));exit();
</code>After this code is executed, infinite dump data comes out of the page, like an infinite loop. How to solve it? The a.list-group-item element must exist. . .
If you have used JavaScript, you should know that DOM is actually a tree, that is, DOM Tree. Each DOM node (node) will contain its direct parent node (parent node) and the serial number of the node to facilitate positioning and traversal rendering. Page, please think about it. If the nesting level is a little deeper, your var_dump will definitely not be able to output because the level is too deep (it usually shows a timeout when xdebug is not installed). After installing xdebug, please see: https://xdebug. org/docs/all_settings#var_display_max_depth will generally output a nesting depth of up to 3 levels, so I suggest not to use var_dump to debug simple_html_dom or its simple_html_dom_node objects. You can install xdebug for breakpoint debugging and play with high-end ones. How to do it specifically? Debugging is beyond the scope of this answer. Please Baidu "xdebug breakpoint debugging" by yourself.
There is a lot of content, so comments are not allowed, only answers can be posted...
The output data is relatively large because you dumped a few objects but did not arrive
Unlimited dump data level
<code>class simple_html_dom_node#147 (9) {
public $nodetype =>
int(1)
public $tag =>
string(1) "a"
public $attr =>
array(4) {
'class' =>
string(15) "list-group-item"
'href' =>
string(5) "#w0-1"
'data-toggle' =>
string(8) "collapse"
'data-parent' =>
string(3) "#w0"
}
public $children =>
array(1) {
[0] =>
class simple_html_dom_node#149 (9) {
public $nodetype =>
int(1)
public $tag =>
string(1) "b"
public $attr =>
array(1) {
...
}
public $children =>
array(0) {
...
}
public $nodes =>
array(0) {
...
}
public $parent =>
...
public $_ =>
array(5) {
...
}
public $tag_start =>
int(3100)
private $dom =>
class simple_html_dom#3 (23) {
...
}
}
}
public $nodes =>
array(2) {
[0] =>
class simple_html_dom_node#148 (9) {
public $nodetype =>
int(3)
public $tag =>
string(4) "text"
public $attr =>
array(0) {
...
}
public $children =>
array(0) {
...
}
public $nodes =>
array(0) {
...
}
public $parent =>
...
public $_ =>
array(1) {
...
}
public $tag_start =>
int(0)
private $dom =>
class simple_html_dom#3 (23) {
...
}
}
[1] =>
class simple_html_dom_node#149 (9) {
public $nodetype =>
int(1)
public $tag =>
string(1) "b"
public $attr =>
array(1) {
...
}
public $children =>
array(0) {
...
}
public $nodes =>
array(0) {
...
}
public $parent =>
...
public $_ =>
array(5) {
...
}
public $tag_start =>
int(3100)
private $dom =>
class simple_html_dom#3 (23) {
...
}
}
}
public $parent =>
class simple_html_dom_node#146 (9) {
public $nodetype =>
int(1)
public $tag =>
string(3) "div"
public $attr =>
array(2) {
'id' =>
string(2) "w0"
'class' =>
string(10) "list-group"
}
public $children =>
array(32) {
[0] =>
...
[1] =>
class simple_html_dom_node#150 (9) {
...
}
[2] =>
class simple_html_dom_node#157 (9) {
...
}
[3] =>
class simple_html_dom_node#160 (9) {
...
}
[4] =>
class simple_html_dom_node#182 (9) {
...
}
[5] =>
class simple_html_dom_node#185 (9) {
...
}
[6] =>
class simple_html_dom_node#222 (9) {
...
}
[7] =>
class simple_html_dom_node#225 (9) {
...
}
[8] =>
class simple_html_dom_node#250 (9) {
...
}
[9] =>
class simple_html_dom_node#253 (9) {
...
}
[10] =>
class simple_html_dom_node#281 (9) {
...
}
[11] =>
class simple_html_dom_node#284 (9) {
...
}
[12] =>
class simple_html_dom_node#309 (9) {
...
}
[13] =>
class simple_html_dom_node#312 (9) {
...
}
[14] =>
class simple_html_dom_node#328 (9) {
...
}
[15] =>
class simple_html_dom_node#331 (9) {
...
}
[16] =>
class simple_html_dom_node#353 (9) {
...
}
[17] =>
class simple_html_dom_node#356 (9) {
...
}
[18] =>
class simple_html_dom_node#372 (9) {
...
}
[19] =>
class simple_html_dom_node#375 (9) {
...
}
[20] =>
class simple_html_dom_node#391 (9) {
...
}
[21] =>
class simple_html_dom_node#394 (9) {
...
}
[22] =>
class simple_html_dom_node#422 (9) {
...
}
[23] =>
class simple_html_dom_node#425 (9) {
...
}
[24] =>
class simple_html_dom_node#435 (9) {
...
}
[25] =>
class simple_html_dom_node#438 (9) {
...
}
[26] =>
class simple_html_dom_node#457 (9) {
...
}
[27] =>
class simple_html_dom_node#460 (9) {
...
}
[28] =>
class simple_html_dom_node#491 (9) {
...
}
[29] =>
class simple_html_dom_node#494 (9) {
...
}
[30] =>
class simple_html_dom_node#501 (9) {
...
}
[31] =>
class simple_html_dom_node#504 (9) {
...
}
}
public $nodes =>
array(47) {
[0] =>
...
[1] =>
class simple_html_dom_node#150 (9) {
...
}
[2] =>
class simple_html_dom_node#156 (9) {
...
}
[3] =>
class simple_html_dom_node#157 (9) {
...
}
[4] =>
class simple_html_dom_node#160 (9) {
...
}
[5] =>
class simple_html_dom_node#181 (9) {
...
}
[6] =>
class simple_html_dom_node#182 (9) {
...
}
[7] =>
class simple_html_dom_node#185 (9) {
...
}
[8] =>
class simple_html_dom_node#221 (9) {
...
}
[9] =>
class simple_html_dom_node#222 (9) {
...
}
[10] =>
class simple_html_dom_node#225 (9) {
...
}
[11] =>
class simple_html_dom_node#249 (9) {
...
}
[12] =>
class simple_html_dom_node#250 (9) {
...
}
[13] =>
class simple_html_dom_node#253 (9) {
...
}
[14] =>
class simple_html_dom_node#280 (9) {
...
}
[15] =>
class simple_html_dom_node#281 (9) {
...
}
[16] =>
class simple_html_dom_node#284 (9) {
...
}
[17] =>
class simple_html_dom_node#308 (9) {
...
}
[18] =>
class simple_html_dom_node#309 (9) {
...
}
[19] =>
class simple_html_dom_node#312 (9) {
...
}
[20] =>
class simple_html_dom_node#327 (9) {
...
}
[21] =>
class simple_html_dom_node#328 (9) {
...
}
[22] =>
class simple_html_dom_node#331 (9) {
...
}
[23] =>
class simple_html_dom_node#352 (9) {
...
}
[24] =>
class simple_html_dom_node#353 (9) {
...
}
[25] =>
class simple_html_dom_node#356 (9) {
...
}
[26] =>
class simple_html_dom_node#371 (9) {
...
}
[27] =>
class simple_html_dom_node#372 (9) {
...
}
[28] =>
class simple_html_dom_node#375 (9) {
...
}
[29] =>
class simple_html_dom_node#390 (9) {
...
}
[30] =>
class simple_html_dom_node#391 (9) {
...
}
[31] =>
class simple_html_dom_node#394 (9) {
...
}
[32] =>
class simple_html_dom_node#421 (9) {
...
}
[33] =>
class simple_html_dom_node#422 (9) {
...
}
[34] =>
class simple_html_dom_node#425 (9) {
...
}
[35] =>
class simple_html_dom_node#434 (9) {
...
}
[36] =>
class simple_html_dom_node#435 (9) {
...
}
[37] =>
class simple_html_dom_node#438 (9) {
...
}
[38] =>
class simple_html_dom_node#456 (9) {
...
}
[39] =>
class simple_html_dom_node#457 (9) {
...
}
[40] =>
class simple_html_dom_node#460 (9) {
...
}
[41] =>
class simple_html_dom_node#490 (9) {
...
}
[42] =>
class simple_html_dom_node#491 (9) {
...
}
[43] =>
class simple_html_dom_node#494 (9) {
...
}
[44] =>
class simple_html_dom_node#500 (9) {
...
}
[45] =>
class simple_html_dom_node#501 (9) {
...
}
[46] =>
class simple_html_dom_node#504 (9) {
...
}
}
public $parent =>
class simple_html_dom_node#144 (9) {
public $nodetype =>
int(1)
public $tag =>
string(3) "div"
public $attr =>
array(1) {
...
}
public $children =>
array(1) {
...
}
public $nodes =>
array(3) {
...
}
public $parent =>
class simple_html_dom_node#142 (9) {
...
}
public $_ =>
array(5) {
...
}
public $tag_start =>
int(2936)
private $dom =>
class simple_html_dom#3 (23) {
...
}
}
public $_ =>
array(5) {
[0] =>
int(143)
[2] =>
array(2) {
...
}
[3] =>
array(2) {
...
}
[7] =>
string(0) ""
[1] =>
int(513)
}
public $tag_start =>
int(2962)
private $dom =>
class simple_html_dom#3 (23) {
public $root =>
class simple_html_dom_node#2 (9) {
...
}
public $nodes =>
array(1787) {
...
}
public $callback =>
NULL
public $lowercase =>
bool(true)
public $original_size =>
int(48883)
public $size =>
int(46297)
protected $pos =>
int(46297)
protected $doc =>
string(46297) "<!DOCTYPE html> <html lang="zh-CN"> <head> <meta charset="UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <meta name="csrf-param" content="_csrf"> <meta name="csrf-token" content="Lld4a0wtQW9gBz46Hlw0VxcxEjwYRytCQyVBPzxvKR1tJEkBOl4WDQ=="> <title>搴旂敤涓讳綋 - Yii 2.0 鏉冨▉鎸囧崡 - 鏂囨。 - Yii Framework 涓枃绀惧尯</title> <meta name="keywords" content="Yii Framewok, 鏉冨▉鎸囧崡"> <meta name="description" content="Yi"...
protected $char =>
NULL
protected $cursor =>
int(1787)
protected $parent =>
class simple_html_dom_node#2 (9) {
...
}
protected $noise =>
array(90) {
...
}
protected $token_blank =>
string(4) "
"
protected $token_equal =>
string(4) " =/>"
protected $token_slash =>
string(6) " />
"
protected $token_attr =>
string(2) " >"
public $_charset =>
string(5) "UTF-8"
public $_target_charset =>
string(5) "UTF-8"
protected $default_br_text =>
string(2) "
"
public $default_span_text =>
string(1) " "
protected $self_closing_tags =>
array(9) {
...
}
protected $block_tags =>
array(6) {
...
}
protected $optional_closing_tags =>
array(11) {
...
}
}
}
public $_ =>
array(5) {
[0] =>
int(144)
[2] =>
array(4) {
[0] =>
int(0)
[1] =>
int(0)
[2] =>
int(0)
[3] =>
int(0)
}
[3] =>
array(4) {
[0] =>
array(3) {
...
}
[1] =>
array(3) {
...
}
[2] =>
array(3) {
...
}
[3] =>
array(3) {
...
}
}
[7] =>
string(0) ""
[1] =>
int(147)
}
public $tag_start =>
int(2994)
private $dom =>
class simple_html_dom#3 (23) {
public $root =>
class simple_html_dom_node#2 (9) {
public $nodetype =>
int(5)
public $tag =>
string(4) "root"
public $attr =>
array(0) {
...
}
public $children =>
array(2) {
...
}
public $nodes =>
array(4) {
...
}
public $parent =>
NULL
public $_ =>
array(2) {
...
}
public $tag_start =>
int(0)
private $dom =>
...
}
public $nodes =>
array(1787) {
[0] =>
class simple_html_dom_node#2 (9) {
...
}
[1] =>
class simple_html_dom_node#4 (9) {
...
}
[2] =>
class simple_html_dom_node#5 (9) {
...
}
[3] =>
class simple_html_dom_node#6 (9) {
...
}
[4] =>
class simple_html_dom_node#7 (9) {
...
}
[5] =>
class simple_html_dom_node#8 (9) {
...
}
[6] =>
class simple_html_dom_node#9 (9) {
...
}
[7] =>
class simple_html_dom_node#10 (9) {
...
}
[8] =>
class simple_html_dom_node#11 (9) {
...
}
[9] =>
class simple_html_dom_node#12 (9) {
...
}
[10] =>
class simple_html_dom_node#13 (9) {
...
}
[11] =>
class simple_html_dom_node#14 (9) {
...
}
[12] =>
class simple_html_dom_node#15 (9) {
...
}
[13] =>
class simple_html_dom_node#16 (9) {
...
}
[14] =>
class simple_html_dom_node#17 (9) {
...
}
[15] =>
class simple_html_dom_node#18 (9) {
...
}
[16] =>
class simple_html_dom_node#19 (9) {
...
}
[17] =>
class simple_html_dom_node#20 (9) {
...
}
[18] =>
class simple_html_dom_node#21 (9) {
...
}
[19] =>
class simple_html_dom_node#22 (9) {
...
}
[20] =>
class simple_html_dom_node#23 (9) {
...
}
[21] =>
class simple_html_dom_node#24 (9) {
...
}
[22] =>
class simple_html_dom_node#25 (9) {
...
}
[23] =>
class simple_html_dom_node#26 (9) {
...
}
[24] =>
class simple_html_dom_node#27 (9) {
...
}
[25] =>
class simple_html_dom_node#28 (9) {
...
}
[26] =>
class simple_html_dom_node#29 (9) {
...
}
[27] =>
class simple_html_dom_node#30 (9) {
...
}
[28] =>
class simple_html_dom_node#31 (9) {
...
}
[29] =>
class simple_html_dom_node#32 (9) {
...
}
[30] =>
class simple_html_dom_node#33 (9) {
...
}
[31] =>
class simple_html_dom_node#34 (9) {
...
}
[32] =>
class simple_html_dom_node#35 (9) {
...
}
[33] =>
class simple_html_dom_node#36 (9) {
...
}
[34] =>
class simple_html_dom_node#37 (9) {
...
}
[35] =>
class simple_html_dom_node#38 (9) {
...
}
[36] =>
class simple_html_dom_node#39 (9) {
...
}
[37] =>
class simple_html_dom_node#40 (9) {
...
}
[38] =>
class simple_html_dom_node#41 (9) {
...
}
[39] =>
class simple_html_dom_node#42 (9) {
...
}
[40] =>
class simple_html_dom_node#43 (9) {
...
}
[41] =>
class simple_html_dom_node#44 (9) {
...
}
[42] =>
class simple_html_dom_node#45 (9) {
...
}
[43] =>
class simple_html_dom_node#46 (9) {
...
}
[44] =>
class simple_html_dom_node#47 (9) {
...
}
[45] =>
class simple_html_dom_node#48 (9) {
...
}
[46] =>
class simple_html_dom_node#49 (9) {
...
}
[47] =>
class simple_html_dom_node#50 (9) {
...
}
[48] =>
class simple_html_dom_node#51 (9) {
...
}
[49] =>
class simple_html_dom_node#52 (9) {
...
}
[50] =>
class simple_html_dom_node#53 (9) {
...
}
[51] =>
class simple_html_dom_node#54 (9) {
...
}
[52] =>
class simple_html_dom_node#55 (9) {
...
}
[53] =>
class simple_html_dom_node#56 (9) {
...
}
[54] =>
class simple_html_dom_node#57 (9) {
...
}
[55] =>
class simple_html_dom_node#58 (9) {
...
}
[56] =>
class simple_html_dom_node#59 (9) {
...
}
[57] =>
class simple_html_dom_node#60 (9) {
...
}
[58] =>
class simple_html_dom_node#61 (9) {
...
}
[59] =>
class simple_html_dom_node#62 (9) {
...
}
[60] =>
class simple_html_dom_node#63 (9) {
...
}
[61] =>
class simple_html_dom_node#64 (9) {
...
}
[62] =>
class simple_html_dom_node#65 (9) {
...
}
[63] =>
class simple_html_dom_node#66 (9) {
...
}
[64] =>
class simple_html_dom_node#67 (9) {
...
}
[65] =>
class simple_html_dom_node#68 (9) {
...
}
[66] =>
class simple_html_dom_node#69 (9) {
...
}
[67] =>
class simple_html_dom_node#70 (9) {
...
}
[68] =>
class simple_html_dom_node#71 (9) {
...
}
[69] =>
class simple_html_dom_node#72 (9) {
...
}
[70] =>
class simple_html_dom_node#73 (9) {
...
}
[71] =>
class simple_html_dom_node#74 (9) {
...
}
[72] =>
class simple_html_dom_node#75 (9) {
...
}
[73] =>
class simple_html_dom_node#76 (9) {
...
}
[74] =>
class simple_html_dom_node#77 (9) {
...
}
[75] =>
class simple_html_dom_node#78 (9) {
...
}
[76] =>
class simple_html_dom_node#79 (9) {
...
}
[77] =>
class simple_html_dom_node#80 (9) {
...
}
[78] =>
class simple_html_dom_node#81 (9) {
...
}
[79] =>
class simple_html_dom_node#82 (9) {
...
}
[80] =>
class simple_html_dom_node#83 (9) {
...
}
[81] =>
class simple_html_dom_node#84 (9) {
...
}
[82] =>
class simple_html_dom_node#85 (9) {
...
}
[83] =>
class simple_html_dom_node#86 (9) {
...
}
[84] =>
class simple_html_dom_node#87 (9) {
...
}
[85] =>
class simple_html_dom_node#88 (9) {
...
}
[86] =>
class simple_html_dom_node#89 (9) {
...
}
[87] =>
class simple_html_dom_node#90 (9) {
...
}
[88] =>
class simple_html_dom_node#91 (9) {
...
}
[89] =>
class simple_html_dom_node#92 (9) {
...
}
[90] =>
class simple_html_dom_node#93 (9) {
...
}
[91] =>
class simple_html_dom_node#94 (9) {
...
}
[92] =>
class simple_html_dom_node#95 (9) {
...
}
[93] =>
class simple_html_dom_node#96 (9) {
...
}
[94] =>
class simple_html_dom_node#97 (9) {
...
}
[95] =>
class simple_html_dom_node#98 (9) {
...
}
[96] =>
class simple_html_dom_node#99 (9) {
...
}
[97] =>
class simple_html_dom_node#100 (9) {
...
}
[98] =>
class simple_html_dom_node#101 (9) {
...
}
[99] =>
class simple_html_dom_node#102 (9) {
...
}
[100] =>
class simple_html_dom_node#103 (9) {
...
}
[101] =>
class simple_html_dom_node#104 (9) {
...
}
[102] =>
class simple_html_dom_node#105 (9) {
...
}
[103] =>
class simple_html_dom_node#106 (9) {
...
}
[104] =>
class simple_html_dom_node#107 (9) {
...
}
[105] =>
class simple_html_dom_node#108 (9) {
...
}
[106] =>
class simple_html_dom_node#109 (9) {
...
}
[107] =>
class simple_html_dom_node#110 (9) {
...
}
[108] =>
y(3) {
...
}
'th' =>
array(1) {
...
}
'td' =>
array(1) {
...
}
'li' =>
array(1) {
...
}
'dt' =>
array(2) {
...
}
'dd' =>
array(2) {
...
}
'dl' =>
array(2) {
...
}
'p' =>
array(1) {
...
}
'nobr' =>
array(1) {
...
}
'b' =>
array(1) {
...
}
'option' =>
array(1) {
...
}
}
}
}</code>
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1377
52
The Future of PHP: Adaptations and Innovations
Apr 11, 2025 am 12:01 AM
The future of PHP will be achieved by adapting to new technology trends and introducing innovative features: 1) Adapting to cloud computing, containerization and microservice architectures, supporting Docker and Kubernetes; 2) introducing JIT compilers and enumeration types to improve performance and data processing efficiency; 3) Continuously optimize performance and promote best practices.
PHP vs. Python: Understanding the Differences
Apr 11, 2025 am 12:15 AM
PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.
The Role of HTML: Structuring Web Content
Apr 11, 2025 am 12:12 AM
The role of HTML is to define the structure and content of a web page through tags and attributes. 1. HTML organizes content through tags such as , making it easy to read and understand. 2. Use semantic tags such as, etc. to enhance accessibility and SEO. 3. Optimizing HTML code can improve web page loading speed and user experience.
PHP: Is It Dying or Simply Adapting?
Apr 11, 2025 am 12:13 AM
PHP is not dying, but constantly adapting and evolving. 1) PHP has undergone multiple version iterations since 1994 to adapt to new technology trends. 2) It is currently widely used in e-commerce, content management systems and other fields. 3) PHP8 introduces JIT compiler and other functions to improve performance and modernization. 4) Use OPcache and follow PSR-12 standards to optimize performance and code quality.
The 2-Hour Python Plan: A Realistic Approach
Apr 11, 2025 am 12:04 AM
You can learn basic programming concepts and skills of Python within 2 hours. 1. Learn variables and data types, 2. Master control flow (conditional statements and loops), 3. Understand the definition and use of functions, 4. Quickly get started with Python programming through simple examples and code snippets.
How to start the server with redis
Apr 10, 2025 pm 08:12 PM
The steps to start a Redis server include: Install Redis according to the operating system. Start the Redis service via redis-server (Linux/macOS) or redis-server.exe (Windows). Use the redis-cli ping (Linux/macOS) or redis-cli.exe ping (Windows) command to check the service status. Use a Redis client, such as redis-cli, Python, or Node.js, to access the server.
How to read redis queue
Apr 10, 2025 pm 10:12 PM
To read a queue from Redis, you need to get the queue name, read the elements using the LPOP command, and process the empty queue. The specific steps are as follows: Get the queue name: name it with the prefix of "queue:" such as "queue:my-queue". Use the LPOP command: Eject the element from the head of the queue and return its value, such as LPOP queue:my-queue. Processing empty queues: If the queue is empty, LPOP returns nil, and you can check whether the queue exists before reading the element.
Understanding HTML, CSS, and JavaScript: A Beginner's Guide
Apr 12, 2025 am 12:02 AM
WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.
