php eval



la construction de langage eval() est très dangereuse car elle autorise l'exécution de code php arbitraire. son utilisation est vivement déconseillée. si vous avez soigneusement vérifié qu'il n'y a pas d'autres options que de l'utiliser, gardez une attention toute particulière à ne pas y passer de données provenant d'un  definition and usage. the eval() function evaluates a string as php code. the string must be valid php code and must end with semicolon. note: a return statement will terminate the evaluation of the string immediately. tip: this function can be useful for storing php code in a database. you need to return the array. from the docs: eval() returns null unless return is called in the evaluated code, in which case the value passed to return is returned. so you need to do: $arr = eval("return array('foo'=>'bar');");.

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ever thought “gee, it would be nice if i could store some php in a database and execute it at will?” well you're in luck my friend, php was thinking of you when they created the eval function. the syntax for eval is very simple: eval ( string $code_str );. unfortunately, the output of eval does not work like you might expect it to. the php eval () construct is used to evaluate an input string as php and then process it as such. eval() is not a function, but it works like one in the sense that it outputs everything—except instead of outputting it as text, it outputs it as php code to be executed. one use of the eval() construct is to store code  definition and usage. the eval() function evaluates a string as php code. the string must be valid php code and must end with semicolon. note: a return statement will terminate the evaluation of the string immediately. tip: this function can be useful for storing php code in a database.

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la construction de langage eval() est très dangereuse car elle autorise l'exécution de code php arbitraire. son utilisation est vivement déconseillée. si vous avez soigneusement vérifié qu'il n'y a pas d'autres options que de l'utiliser, gardez une attention toute particulière à ne pas y passer de données provenant d'un  debugging php eval issues. drupal contains a php filter for content; acquia highly recommends that you keep this filter off to prevent users from injecting malicious or just plain broken code into a website. if enabled, any section of the website that allows you to use the php filter can contain bad code: a node, a block, or a  github is where people build software. more than million people use github to discover, fork, and contribute to over million projects. drush php eval command reference with examples for drush .x.

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