PHP Regex to remove last paragraph and contents -

-

i have following stored in mysql table:

<p>first paragraph</p><p>second paragraph</p><p>third paragraph</p><div class="item"><p>some paragraph here</p><p><strong><u>specs</u>:</strong><br /><br /><strong>weight:</strong> 10kg<br /><br /><strong>lxwxh:</strong> 5mx1mx40cm</p><p>this paragraph trying remove regex.</p></div>

i'm trying remove last paragraph tags , content on every row in table. can loop through table php enough, regex has me stumped.

every preg_match i've found on stackoverflow either gives me "preg_match(): unknown modifier" error, or var_dump shows empty array. believe match content if did work think need preg_replace?

the rows aren't identical in length, going last paragraph want remove.

would appreciate if show me how. thanks

this remove last <p>anything</p>.

<?php $html = '<p>first paragraph</p><p>second paragraph</p><p>third paragraph</p><div class="item"><p>some paragraph here</p><p><strong><u>specs</u>:</strong><br /><br /><strong>weight:</strong> 10kg<br /><br /><strong>lxwxh:</strong> 5mx1mx40cm</p><p>this paragraph trying remove regex.</p></div>'; $html = preg_replace('~(.*)<p>.*?</p>~', '$1', $html); echo $html;

the (.*) grabbing until last paragraph tag , storing it. .*? grabs between paragraph tags, ? tells stop @ next closing paragraph tag. don't use capturing here because don't care inside. $1 found content before last <p>. ~ delimiters telling regex begins , ends. suspect causing regexs fail currently. http://php.net/manual/en/regexp.reference.delimiters.php

output:

<p>first paragraph</p><p>second paragraph</p><p>third paragraph</p><div class="item"><p>some paragraph here</p><p><strong><u>specs</u>:</strong><br /><br /><strong>weight:</strong> 10kg<br /><br /><strong>lxwxh:</strong> 5mx1mx40cm</p></div>

note: there xml/html parsers should consider using them because regexs html/xml can messy quickly.

http://php.net/manual/en/refs.xml.php
how parse , process html/xml in php?

demo: http://sandbox.onlinephpfunctions.com/code/0ddf46c328323e8b6357313a5464733ff797bc3f


Comments

Post a Comment

Popular posts from this blog

PHP DOM loadHTML() method unusual warning -

-
i had following code works fine on localhost: $document = new domdocument(); $document->loadhtml($p_result); $form = $document->getelementsbytagname('form')->item(0); // code continues using $form variable after same code updated on outside server, loadhtml() failed , issued warning. warning: domdocument::loadhtml() expects parameter 1 valid path, string given in path/name/to/script.php returned null instead of object code pretty gets fatal error. note contents of $p_result absolutely same on outside server , on localhost. but why displays kind of warning , why not work? doesn't loadhtml() expects argument 1 string in first place? why method expects parameter 1 valid path ? just make clear i'm not calling loadhtmlfile() , i'm calling loadhtml() . thanks. you're affected one of php bugs . issue present in php 5.6.8 , 5.6.9. have affected php version on server, , bug-free version on localhost. the bug forbids null
Read more

python - How to create jsonb index using GIN on SQLAlchemy? -

-
here's current code creating index jsonb. index("mytable_data_idx_id_key", mytable.data['id'].astext, postgresql_using='gin') but got error. sqlalchemy.exc.programmingerror: (psycopg2.programmingerror) data type text has no default operator class access method "gin" hint: must specify operator class index or define default operator class data type. [sql: "create index event_data_idx_id_key on event using gin ((data ->> 'id'))"] is there way create index on sqlalchemy? the postgresql specific sqlalchemy docs @ http://docs.sqlalchemy.org/en/latest/dialects/postgresql.html#operator-classes mention postgresql_ops dictionary provide "operator class" used postgresql, , provide example illustrating use: index('my_index', my_table.c.id, my_table.c.data, postgresql_ops={ 'data': 'text_pattern_ops',
Read more

c# - TransactionScope not rolling back although no complete() is called -

-
i'm using transactionscope rollback transaction fail bool errorreported = false; action<importerrorlog> newerrorcallback = e => { errorreported = true; errorcallback(e); }; using (var transaction = new transactionscope()) { foreach (importtaskdefinition task in taskdefinition) { loader.load(streamfile, newerrorcallback, task.destinationtable, processingtaskid); } if (!errorreported) transaction.complete(); } i'm sure there no transactionscope started ahead or after code. i'm using entity framework insert in db. regardless state of errorreported transaction never rolled in case of error. what missing ? transactionscope sets transaction.current . that's does. wants transacted must @ property. i believe ef each time connection opened reason. probably, connection open when scope installed. open connection inside of scope or enlist manually. ef has nasty "design decision": default opens
Read more