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Thread: How To Check Whether An Html Element Or Plain Text Exists On A Page Or Not

  1. #1
    Join Date
    Oct 2016
    Posts
    152

    Question How To Check Whether An Html Element Or Plain Text Exists On A Page Or Not

    Pros,


    Imagine you want to only provide your download link to those who tweet about you. Now, how would you code it ?
    Let's make it simple for you to understand.
    Let's say you want to write a php script that checks if a certain html element (eg. name=username) or plain text exists or not.
    If it exists then to give you an alert "TRUE"; Else alert: FALSE.

    In this example, you want the script to check this page:
    https://twitter.com/TangoForce123

    And you want it to check if the following text (exact match) exists or not:
    "I'd like to put forward an Idea"

    How would you code it ? Can we see 2-3 examples ?
    I'd be grateful if you can show another example for a fuzzy match. Eg:
    * like to put forward *

    This is an interesting topic. Base the boolean around what exists or not on a page.
    Curious to see what the code would look like and php is capable of doing it in how many lines of code.


    Thanks

  2. #2
    Join Date
    Aug 2004
    Location
    Ankh-Morpork
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    22,335
    I'd start by seeing if the Twitter API would give me a dependable way to do it. https://dev.twitter.com/overview/api
    "Well done....Consciousness to sarcasm in five seconds!" ~ Terry Pratchett, Night Watch

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  3. #3
    Join Date
    Apr 2017
    Location
    USA
    Posts
    6
    Nowadays, many tools are present here for checking, also use Firefox Add-ons.


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