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20 November, 2018

Include() and require() function in Hindi

 Programing Coderfunda     November 20, 2018     Include, php, require     No comments   

PHP में एक file में दूसरे file का content इस्तेमाल किया जाता है | इसके लिए PHP दो functions दिए गए है |
  1. include() function
  2. require() function
इनका इस्तेमाल करके PHP program में आसानी आ जाती है | इससे programmer का समय बचना | बड़ा script छोटी हो जाती है | एक PHP file में कितनी भी external php files इस्तेमाल की जाती है |
For eg. अगर web developer को हर एक web page पर header और footer के लिए वही script लिखनी पड़ती है | लेकिन header और footer के दोनों अलग-अलग php files बनाकर उन्हें web page पर header और footer की जगह include() या require() function के जरिये इस्तेमाल किया जाता है |

1. include() function

include() function से external php file को किसी php file में इस्तेमाल किया जाता है |
include function में जिस external php file को include करना है उस file के नाम के साथ उनका path लिखना पड़ता है | path को double("") या single quotes('') में लिखा जाता है |

Syntax for include()

include("path_or_filename");    or
include('path_or_filename');

external_file.php
Source Code :
123<?php
 echo "external file name is external_file.php";
?>

Example for include() function

current_file.php
Source Code :
1234<?php
 echo "current file name is current_file.php";
 include ("external_file.php");
?>
Output :
current file name is current_file.php
external file name is external_file.php

2. require() function

require() function का इस्तेमाल include() function के जैसा ही होता है |

Syntax for require()

require("path_or_filename");    or
require('path_or_filename');

external_file.php
Source Code :
123<?php
 echo "external file name is external_file.php";
?>

Example for require() function

current_file.php
Source Code :
1234<?php
 echo "current file name is current_file.php";
 require ("external_file.php");
?>
Output :
current file name is current_file.php
external file name is external_file.php

Difference Between include() and require() function

जब कोई external php file किसी दुसरे php file पर include() function के जरिये include की जाती है | अगर include किये गए file का path गलत होता है तो बाकी file के code को execute होने से नहीं रोकता | वो warning message देता है कि, आपने दी हुई file नहीं है |
अगर require() function के बारे में देखे तो अगर दिया हुआ path गलत होता है तो पूरा का पूरा php code का execution रोक देता है | यहाँ पर ये compilation error message दे देता है |
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