How do i check if a string contains a string in php?
You could use regular expressions as it's better for word matching compared to Show A simple match for
On the performance side, Edit: In order to search any part of the string, not just word by word, I would recommend using a regular expression like
The Now, this
can be quite problematic in some cases as the $search string isn't sanitized in any way, I mean, it might not pass the check in some cases as if Also, here's a great tool for testing and seeing explanations of various regular expressions Regex101 To combine both sets of functionality into a single multi-purpose function (including with selectable case sensitivity), you could use something like this:
One more thing to take in mind, is that The explanation for this and the solution is taken from here:
So in order to use the answer in PHP, you can use this function:
And if you want to search for array of words, you can use this:
As of PHP 8.0.0 you can now use str_contains (PHP 8) str_contains — Determine if a string contains a given substring Descriptionstr_contains(string Parametershaystack
The string to search in. needle The substring to search for in the Return Values Returns ExamplesExample #1 Using the empty string
The above example will output: Checking the existence of the empty string will always return true Example #2 Showing case-sensitivity
str_contains($string, 'lazy')) { The above example will output: The string 'lazy' was found in the string "Lazy" was not found because the case does not match Notes
See Also
scm6079 ¶ 1 year ago
aisunny7 dot xy at gmail dot com ¶ 7 months ago
juliyvchirkov at gmail dot com ¶ 1 year ago
drupalista dot com dot br at gmail dot com ¶ 5 months ago
olivertasche+nospam at gmail dot com ¶ 1 year ago
AuxData ¶ 10 months ago
kadenskinner at gmail dot com ¶ 1 year ago
= '@'; How do I check if a string contains something?The includes() method returns true if a string contains a specified string. Otherwise it returns false .
How do you check whether a string is present in another string?You can use contains(), indexOf() and lastIndexOf() method to check if one String contains another String in Java or not. If a String contains another String then it's known as a substring. The indexOf() method accepts a String and returns the starting position of the string if it exists, otherwise, it will return -1.
Is contain string PHP?Using str_contains
The str_contains is a new function that was introduced in PHP 8. This method is used to check if a PHP string contains a substring. The function checks the string and returns a boolean true in case it exists and false otherwise. However, keep in mind that str_contains is case-sensitive.
How do you check whether a string contains any words from an array?To check if a string contains a substring from an array:. Use the Array. some() method to iterate over the array.. Check if the string contains each substring.. If the condition is met, the string contains a substring from the array.. |