How to use preg_match in wordpress - wordpress

I am not getting particular text in the defined variable
In normal PHP is working fine.. but when I uploaded this code in wordpress.. its not working.. throwing an error
$ical = 'BEGIN:VCALENDAR
PRODID:-//SomeExampleStuff//EN
VERSION:2.0
BEGIN:VEVENT
CREATED:20190726T114808Z
DTEND;TZID=Asia/Kolkata:20190726T180000
DTSTAMP:20190726T114813Z
DTSTART;TZID=Asia/Kolkata:20190726T170000
LAST-MODIFIED:20190726T114808Z
LOCATION:
SEQUENCE:0
STATUS:CONFIRMED
SUMMARY:Bajaj
UID:A8H1C9CE-B911-466B-T04C-CP69098907K1
END:VEVENT
END:VCALENDAR';
if (! preg_match( '#^UID:(.*?)\r?\n?$#m', $ical, $matches ) ):
echo "not fould";
else:
$uid = $matches[1];
echo $uid;
endif;
I need only "UID:A8H1C9CE-B911-466B-T04C-CP69098907K1" from the $ical variable

Thanks for the detailed report
The preg_ function such as preg_match is set in php.ini
Pcre.backtrack_limit
Pcre.recursion_limit
If it exceeds the upper limit of the memory size, it seems to be an error.
Therefore, when large size is expected, it is necessary to process in other way avoiding preg_match, so replace it with the method using strpos, substr as advised.

Related

Wordpress get current time error on functions.php

I want to get the current time of wordpress, but I got errors, how to fix it? is there another way to get the current time of the wordpress?, I want the time that wordpress using with format (+GMT) and what the user choose, not the server time.
This is my code
<?php
require_once( '/wp-includes/functions.php' );
$format = get_option('date_format') . ' ' . get_option('time_format');
print date_i18n($format, current_time('timestamp'));
?>
These are the errors
Notice: Use of undefined constant ABSPATH - assumed 'ABSPATH' in C:\xampp1\htdocs\wp\wp-includes\functions.php on line 8
Notice: Use of undefined constant WPINC - assumed 'WPINC' in C:\xampp1\htdocs\wp\wp-includes\functions.php on line 8
Warning: require(ABSPATHWPINC/option.php): failed to open stream: No such file or directory in C:\xampp1\htdocs\wp\wp-includes\functions.php on line 8
Fatal error: require(): Failed opening required 'ABSPATHWPINC/option.php' (include_path='.;C:\xampp1\php\PEAR') in C:\xampp1\htdocs\wp\wp-includes\functions.php on line 8
You don't need to include require_once( '/wp-includes/functions.php' );. Directly use the function it will return GMT time like below
<?php echo current_time( 'mysql', 1 ); ?>
For more Please refer this link http://codex.wordpress.org/Function_Reference/current_time

Compilation failed while installing plugin in wordpress

I could customize wordpress theme http://www.apptha.com/demo/video-stream in localhost well .
But I am tring to upload in server get the following error.
Warning: preg_replace_callback(): Compilation failed: missing opening brace after \o at offset 18 in /home/const/public_html/apptha/wp-content/plugins/contus-video-gallery/hdflvvideoshare.php on line 545
My site is http://constantin-entertainment.info/apptha/
here Wordpress video gallery plugin is used, the error pointed line is
$pageContent = preg_replace_callback( '/\[hdvideo ([^]]*)\o]/i', 'video_shortcodeplace', $pageContent );
Please help me..!
Looks like you need to escape the backslash,
$pageContent = preg_replace_callback( '/\[hdvideo ([^]]*)\\o]/i', 'video_shortcodeplace', $pageContent );
Open \wp-content\plugins\contus-video-gallery\hdflvvideoshare.php file and find add_filter('the_content', 'videogallery_pagereplace'); and replace with the following code.
add_shortcode('videohome','video_homereplace');
add_shortcode('videomore','video_morereplace');
add_shortcode('hdvideo','video_shortcodereplace');
Replace
$pageContent = preg_replace_callback('/\[hdvideo ([^]]*)\o]/i',
'video_shortcodeplace',
$pageContent
);
with
$pageContent = preg_replace_callback('/\[hdvideo\s*.*?=(\d+)\]/i',
'video_shortcodeplace',
$pageContent
);

Error by read the file size PHP

I want to get the file size of an attachment of my wordpress post.
But when I run the site, I get this error ...
Can anyone help me?
"Warning: filesize(): stat failed for http://XXX.de/webdev/wp-content/uploads/2013/03/example.zip in C:\Users\XXX\Desktop\XAMPP\htdocs\webdev\wp-content\themes\web dev-theme\modul-page.php on line 27"
<?php
$a = filesize($img['url']);
echo$a;
?>
Thanks!
First check and see if the files/dirs are read/writeable.
I would do this inside of a file exist just for best practices. It is hard to determine what is wrong because you have not specified what line 27 is.
if ( file_exists($img['url']) ) {
$the_file_size = filesize($img['url']);
if ( $the_file_size >= 0 ) {
echo $the_file_size . ' bytes';
} else {
echo "File size could not be determined";
}
}

Install WordPress using bash shell without visiting /wp-admin/install.php?

I wrote this little BASH script that creates a folder,unzips Wordpress and creates a database for a site.
The final step is actually installing Wordpress, which usually involves pointing your browser to install.php and filling out a form in the GUI.
I want to do this from the BASH shell, but can't figure out how to invoke wp_install() and pass it the parameters it needs:
-admin_email
-admin_password
-weblog_title
-user_name
(line 85 in install.php)
Here's a similar question, but in python
#!/bin/bash
#ask for the site name
echo "Site Name:"
read name
# make site directory under splogs
mkdir /var/www/splogs/$name
dirname="/var/www/splogs/$name"
#import wordpress from dropbox
cp -r ~/Dropbox/Web/Resources/Wordpress/Core $dirname
cd $dirname
#unwrap the double wrap
mv Core/* ./
rm -r Core
mv wp-config-sample.php wp-config.php
sed -i 's/database_name_here/'$name'/g' ./wp-config.php
sed -i 's/username_here/root/g' ./wp-config.php
sed -i 's/password_here/mypassword/g' ./wp-config.php
cp -r ~/Dropbox/Web/Resources/Wordpress/Themes/responsive $dirname/wp-content/t$
cd $dirname
CMD="create database $name"
mysql -uroot -pmypass -e "$CMD"
How do I alter the script to automatically run the installer without the need to open a browser?
Check out wp-cli, based on Drush for Drupal.
wp core install --url=url --title=site-title [--admin_name=username] --admin_email=email --admin_password=password
All commands:
wp core [download|config|install|install_network|version|update|update_db]
wp db [create|drop|optimize|repair|connect|cli|query|export|import]
wp eval-file
wp eval
wp export [validate_arguments]
wp generate [posts|users]
wp home
wp option [add|update|delete|get]
wp plugin [activate|deactivate|toggle|path|update|uninstall|delete|status|install]
wp post-meta [get|delete|add|update]
wp post [create|update|delete]
wp theme [activate|path|delete|status|install|update]
wp transient [get|set|delete|type]
wp user-meta [get|delete|add|update]
wp user [list|delete|create|update]
I was having the same problem as you are. I tried Victor's method and it didn't quite work.
I made a few edits and it works now!
You have to add php tags inside of the script to make the code work, otherwise it just echoes to the terminal.
My script directly calls the wp_install function of upgrade.php, bypassing install.php completely (no edits to other files required).
I made my script named script.sh, made it executable, dropped it in the wp-admin directory, and ran it from the terminal.
#!/usr/bin/php
<?php
function get_args()
{
$args = array();
for ($i=1; $i<count($_SERVER['argv']); $i++)
{
$arg = $_SERVER['argv'][$i];
if ($arg{0} == '-' && $arg{1} != '-')
{
for ($j=1; $j < strlen($arg); $j++)
{
$key = $arg{$j};
$value = $_SERVER['argv'][$i+1]{0} != '-' ? preg_replace(array('/^["\']/', '/["\']$/'), '', $_SERVER['argv'][++$i]) : true;
$args[$key] = $value;
}
}
else
$args[] = $arg;
}
return $args;
}
// read commandline arguments
$opt = get_args();
define( 'WP_INSTALLING', true );
/** Load WordPress Bootstrap */
require_once( dirname( dirname( __FILE__ ) ) . '/wp-load.php' );
/** Load WordPress Administration Upgrade API */
require_once( dirname( __FILE__ ) . '/includes/upgrade.php' );
/** Load wpdb */
require_once(dirname(dirname(__FILE__)) . '/wp-includes/wp-db.php');
$result = wp_install($opt[0], $opt[1], $opt[2], false, '', $opt[3]);
?>
I called the file like this: # ./script.sh SiteName UserName email#address.com Password
Maybe you need to modify the Wordpress original installer a bit.
First, create a wrapper php CLI script, let's say its name is wrapper.sh:
#!/usr/bin/php -qC
function get_args()
{
$args = array();
for ($i=1; $i<count($_SERVER['argv']); $i++)
{
$arg = $_SERVER['argv'][$i];
if ($arg{0} == '-' && $arg{1} != '-')
{
for ($j=1; $j < strlen($arg); $j++)
{
$key = $arg{$j};
$value = $_SERVER['argv'][$i+1]{0} != '-' ? preg_replace(array('/^["\']/', '/["\']$/'), '', $_SERVER['argv'][++$i]) : true;
$args[$key] = $value;
}
}
else
$args[] = $arg;
}
return $args;
}
// read commandline arguments
$opt = get_args();
require "install.php";
This will allow you to invoke the script from the command line, and pass arguments to it directly into the $opt numeric array.
You can then pass the needed vars in a strict order you define, for instance:
./wrapper.sh <admin_email> <admin_password> <weblog_title> <user_name>
In the install.php you need to change the definition of the before mentioned vars, as it follows:
global $opt;
$admin_email = $opt[0];
$admin_password = $opt[1];
$weblog_title = $opt[2];
$user_name = $opt[3];
Then let the install script do its job.
This is an untested method, and also very open to any modifications you need. It's mainly a guideline for using a wrapper php/cli script to define the needed variable w/out having to send them via a HTTP REQUEST / query string. Maybe it's rather a weird way to get things done, so please, feel free to give any constructive/destructive feedback :-)
It's incredible how little discussion there is on this topic. I think it's awesome that WP-CLI was released and now acquired by Automattic, which should help to keep the project going long-term.
But relying on another dependency is not ideal, esp. when dealing with automated deployment...
This is what we came up with for SlickStack...
First, we save a MySQL "test" query and grep for e.g. wp_options as variables:
QUERY_PRODUCTION_WP_OPTIONS_EXIST=$(mysql --execute "SHOW TABLES FROM ${DB_NAME} WHERE Tables_in_${DB_NAME} LIKE '${DB_PREFIX}options';")
GREP_WP_OPTIONS_STRING_PRODUCTION=$(echo "${QUERY_PRODUCTION_WP_OPTIONS_EXIST}" | grep --no-messages "${DB_PREFIX}"options)
...doing it this way helps to avoid false positives like when queries/grep might spit out warnings etc.
And the if statement that will populate the WordPress database conditionally:
## populate database if wp_options not exists ##
if [[ -z "${GREP_WP_OPTIONS_STRING_PRODUCTION}" ]]; then
/usr/bin/php -qCr "include '/var/www/html/wp-admin/install.php'; wp_install('SlickStack', '\"${SFTP_USER}\"', '\"${SFTP_USER}\"#\"${SITE_DOMAIN_EXCLUDING_WWW}\"', 1, '', \"${SFTP_PASSWORD}\");"
fi
The -q keeps it quiet to avoid parsing conflicts and the -r tells it to execute the following code. I'm pretty sure we don't really need the -C flag here, but I added it anyways just in case.
Note: I had to play around with the if statement a few times, because the wp_install array is sensitive and I found that wrapping the password variable in single quotes resulted in a broken MD5 hash code, so if any issues try adding/removing quotation marks...

drupal 6 can we write a php file in drupal which changes the headers

i have written a small code which creates a word document but
i got the following errors
require_once './includes/bootstrap.inc';
drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
global $user;
$fp = fopen("test.doc", 'w+');
$str = "<B>This is the text for the word file created through php programming</B><br>test to create a doc file from php";
ob_start();
include('index.php');
$result = ob_get_clean();
fwrite($fp, $result);
echo "executed";
header("Content-Disposition: attachment; filename=test.doc");
header("Content-Type: application/force-download");
header("Content-Length: " . filesize("test.doc"));
header("Connection: close");
fclose($fp);
?>
warning: Cannot modify header information - headers already comnt by (output started at /var/www/www.example.com/htdocs/test_createdoc.php:6) in /var/www/www.example.com/htdocs/test_createdoc.php on line 19.
warning: Cannot modify header information - headers already comnt by (output started at /var/www/www.example.com/htdocs/test_createdoc.php:6) in /var/www/www.example.com/htdocs/test_createdoc.php on line 20.
warning: Cannot modify header information - headers already comnt by (output started at /var/www/www.example.com/htdocs/test_createdoc.php:6) in /var/www/www.example.com/htdocs/test_createdoc.php on line 21.
warning: Cannot modify header information - headers already comnt by (output started at /var/www/www.example.com/htdocs/test_createdoc.php:6) in /var/www/www.example.com/htdocs/test_createdoc.php on line 22
i have even remove the white spaces between php tags
It looks like echo "executed"; sends output before the headers. PHP then stops the headers from sending, because HTTP requires headers to come before output. If removing that doesn't fix it, try commenting out include('index.php'); to test if the output is coming from there.

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