How to check whether a variable is empty in PHP
The empty() function is an built-in function in PHP which is used to check whether a variable is empty or not. A variable is empty if it does not exist or if…
How to check whether a variable is set or not in PHP
The isset() function is an built-in function in PHP which is used to check whether a variable is set or not. The isset() will return true if testing a variable…
How to find string length in PHP
The PHP strlen() is used to get the length of a string. It also includes the white spaces inside the string. Syntax: string – This parameter is required. It specifies the length…
How to remove whitespace from the end of a string in PHP
The rtrim() function is a built-in function in PHP which is used to removes whitespace from the end of a string. Syntax string – This parameter is required. It specifies the…
How to remove whitespace from the beginning of a string in PHP
The ltrim() function is a built-in function in PHP which is used to removes whitespace from the beginning of a string. Syntax string – This parameter is required. It specifies the…
How to convert the first letter of a string to uppercase in PHP
The ucfirst() function is used to change the first character of a string to uppercase. Otherwise, We can use the strtolower() function in combination with the ucfirst() function, if you need to make only first…
How to convert a string to uppercase in PHP
The strtoupper() function is used to converts a string to uppercase. All other special characters or numeric characters in the string remains unchanged. This function is binary-safe. Syntax string –…
How to convert a string to lowercase in PHP
The strtolower() function is used to converts a string to lowercase. All other special characters or numeric characters in the string remains unchanged. This function is binary-safe. Syntax: string –…
How to combine two strings in PHP
We can use the PHP concatenation operator (.) to join or combine two strings together in PHP. This operator is exactly designed for strings. There are two string operators :…
How to split a string into an array in PHP
The explode() function is an built-in function in PHP which is used to break or split a string into an array by a separator string like comma, hyphen, space etc. This…
How to create a string by joining the values of an array in PHP
The implode() or join() is a built-in function in PHP and it is used for creating a string by joining the elements or values of an array with a glue string like…
How to compare two strings in PHP
strcmp() function is used to compare two strings in php. This function is case-sensitive and binary-safe. If we need case-insensitive comparison, we can use the strcasecmp() function. Syntax string1 – This parameter…