PHP token_get_all() Function
Last Updated :
25 Aug, 2023
The token_get_all() function is an inbuilt function in PHP that is used to tokenize a given PHP source code string into an array of tokens. This function is particularly useful for analyzing, parsing, or manipulating PHP code programmatically.
Syntax:
token_get_all(string $code, int $flags = 0)
Parameters: This function accepts two parameters that are described below.
- $code: This is the string that is going to tokenize.
- $flags: This is an optional parameter that modifies the tokenization behavior of the string.
Return Values: The token_get_all() returns array contains elements where each element represents a token.
Program 1: The following program demonstrates the token_get_all() function.
PHP
<?php
$code = '<?php echo "Hello, world!"; ?>' ;
$tokens = token_get_all( $code , TOKEN_PARSE);
foreach ( $tokens as $token ) {
if ( is_array ( $token )) {
echo "Token: " . token_name( $token [0])
. " - Content: " . $token [1] . "\n" ;
} else {
echo "Token: " . $token . "\n" ;
}
}
?>
|
Output
Token: T_OPEN_TAG - Content: <?php
Token: T_ECHO - Content: echo
Token: T_WHITESPACE - Content:
Token: T_CONSTANT_ENCAPSED_STRING - Content: "Hello, world!"
Token: ;
Token: T_WHITESPACE - Content: ...
Program 2: The following program demonstrates the token_get_all() function.
PHP
<?php
$code = '<?php
$message = "Hello, " ;
$name = "John" ;
echo $message . $name ;
?>';
$tokens = token_get_all( $code );
foreach ( $tokens as $token ) {
if ( is_array ( $token )) {
list( $tokenId , $tokenContent ) = $token ;
echo "Token: " . token_name( $tokenId ) .
" - Content: " . $tokenContent . "\n" ;
} else {
echo "Token: " . $token . "\n" ;
}
}
?>
|
Output
Token: T_OPEN_TAG - Content: <?php
Token: T_WHITESPACE - Content:
Token: T_VARIABLE - Content: $message
Token: T_WHITESPACE - Content:
Token: =
Token: T_WHITESPACE - Content:
Token: T_CONSTAN...
Reference: https://www.php.net/manual/en/function.token-get-all.php
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