In other words, does the string contain a certain word or a set of characters? A case insensitive check using the stristr function. If you want your check to be case insensitive, then you can use PHP’sstristrfunction like so: //Our example string. $string = 'This is a sentence.'; ...
echo 'string does not contain only digits'; } ?> Output 2. Negative Scenario – String contains not only numeric digits In this example, we take a string instrsuch that it contains some alphabets along with numeric digits. For the given value of string,preg_match()returnsfalseand else-bloc...
The string contains special character(s) RUN 2: Enter the string : ABC123@#%^ Entered String is ABC123@#%^ The string contains special character(s) RUN 3: Enter the string : Hello world Entered String is Hello world The string does not contain special character(s) ...
PHP POST Request Example PHP String Contains Example PHP Curl POST JSON Example JSON Array PHP Example PHP String Int Example PHP Array JSON Example PHP Print Array Example PHP Split String Example PHP Form POST Example PHP String Compare Example PHP In Array Example PHP GET ...
// Define a function 'isLowerCase' that checks if the given string 'str' contains only lowercase lettersconstisLowerCase=str=>// Check if the given string 'str' is equal to its lowercase versionstr===str.toLowerCase();// Test cases to check if the strings contain only lowercase letterscon...
We did this by using theindexOf()method. If the given search term is not found within the string, the indexOf method will return a -1 (minus one) value. Therefore, if the return value is not -1, we can safely assume that the string does contain the substring we are looking for. ...
This section doesn't contain a list of all error codes, but since many error codes have the same potential resolutions, your best bet is to follow the steps below to troubleshoot your error. For a complete list of stop error codes, seeBug Check Code Reference. ...
This section doesn't contain a list of all error codes, but since many error codes have the same potential resolutions, your best bet is to follow the steps below to troubleshoot your error. For a complete list of stop error codes, seeBug Check Code Reference. ...
Checks if all of the characters in the providedstring,text, are numerical. 参数 text The tested string. 返回值 ReturnsTRUEif every character in the stringtextis a decimal digit,FALSEotherwise. 更新日志 版本说明 5.1.0Before PHP 5.1.0, this function returnedTRUEwhentextwas an empty string. ...
Pre-ES6, the common way to check if a string contains a substring was to use indexOf, which is a string method that return -1 if the string does not contain the substring. If the substring is found, it returns the index of the character that starts the string....