Question: How to Check If a String Contains a Specific Word in PHP?, How to check if URL contain certain strings using PHP?
This Snippet will help you to check if a string contains any substring in PHP (server-side scripting language) Web programming language. For simple example, you want to execute a particular text line of source code only if user an input string contains additional get substring in it.
Answer: Use the PHP strpos() Function
We can use the inbuilt PHP strpos() methods to check and get whether a data string contains a particular word or not exist.
Syntax:
int strpos( $String, $Substring )
check php if strings accommodate Flowchart :
Example 1 : php check strings
The below source code will strpos determine to true since the primary data string $stringcontain contains data the substring ‘Welcome‘ in it. This will PHP print “true” (return boolean value).
Example 2 : php check if string
The below source code will determine to false since the primary data string $stringcontain doesn’t have data the substring ‘Ejunkie‘ in it(using php strpos array). Welcome will nothing PHP print.
Example 3. String Contains Substring on Start
The below source code will check if a String contains a substring at start. The below source code will determine to true (return boolean value) since the primary data string $stringcontain take in data the substring ‘Welcome‘ at start.
Ref: https://www.php.net/manual/en/function.strpos.php
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