PHP This is an example of a random printout string, PHP print output string _php tutorial

PHP This is an example of a random printout string, the PHP print output string

 PhpHeader("content-type:text/html;charset= ' UTF8 '");error_reporting(E_all);Define("Captcha_len", 16);//Random number length$captchaSource= "0123456789abcdefghijklmnopqrstuvwxyz This is an example of a random printout string";//Random Digital Mnemonic$captchaResult= "";//random number return value$captchaSentry= "";//random number Intermediate variable for($i= 0;$i
 
  <> 
  $i + + ) {  $n = Rand(0, strlen( $captchaSource));  if( $n >= ) {  $n = + ceil( $n        -$)/3) * 3 ;     $captchaResult . = substr( $captchaSource, $n, 3 ); 
 }Else{  $captchaResult . = substr( $captchaSource,    $n, 1 );
 }}echo "Random print output string:". $captchaResult. "
 
 
 
 
 
 
 
 
 
"; 
 

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