Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
No Match

~
~
gm

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

$re = '~https?://(?!www\.youtube\.com).+?(?=\s|\\\\n)~m'; $str = '<center><iframe width="560" height="315" src="https://www.youtube.com/embed/itQJWvyH6qc" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe></center> <div><b>Описание</b>:<br> это не первая история о <em>борьбе</em> с акне на моем канале, но надеюсь последняя &#55358;&#56606;\\n\\nFOLLOW ME ON IG - @overbusybee\\nInstagram - https://www.instagram.com/overbusybee\\n\\nссылочки:\\nhttps://ru.stylekorean.com - сайт с корейской косметикой\\nhttps://foambox.ru/ - сайт с косметикой, если не хотите ждать доставку месяц (тут тоже много плюшек, по промокоду SL-ILDB9-2D5K27E можете получить скидку 20% на первый заказ)\\nблог Don\'t touch my face в телеграм - https://t.me/donttouchmyface\\nстатья о <em>гормонах</em> https://www.wonderzine.com/wonderzine/health/wellness/229136-beauty-hormones\\nстатья о борьбе с акне - https://www.the-village.ru/village/people/experience/246301-akne\\nкурсы - https://www.edx.org/course/subject/food-nutrition\\nканал о корейской косметике - https://www.youtube.com/channel/UCRLisgcW47RYTVjn43jHhKg\\nДевушка нутрициолог - https://www.instagram.com/natikobzar\\n\\nmusic - Chinsaku - A.m.\\n\\nabout me \\n- На какую камеру ты снимаешь? <b>Sony</b> 5100\\n- Где ты учишься ? МГИИТ/МГИФКСИТ, туризм, 2 курс\\n\\n сотрудничество ⇒ lvoox@mail.ru\\n\\nвидео не спонсировано \\n#акне #прыщи #каквылечитьакне #overbusybee #LeraShabalina #ЛераШабалина #DrJart #корейскаякосметика'; $subst = ""; $result = preg_replace($re, $subst, $str); echo "The result of the substitution is ".$result;

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php