How do i check if a string contains a specific character 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 ¶ 8 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 has a specific character?Use the String. includes() method to check if a string contains a character, e.g. if (str. includes(char)) {} . The include() method will return true if the string contains the provided character, otherwise false is returned.
How do you get a specific value from a string in PHP?Answer: Use the PHP substr() function
The PHP substr() function can be used to get the substring i.e. the part of a string from a string. This function takes the start and length parameters to return the portion of string.
How do you check if a string contains a specific substring?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 there a Contains method in PHP?The Ds\Set::contains() function is an inbuilt function in PHP which is used to check the given value exists in the set or not.
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