1--TEST-- 2Object to string conversion: error cases and behaviour variations. 3--FILE-- 4<?php 5function test_error_handler($err_no, $err_msg, $filename, $linenum) { 6 echo "Error: $err_no - $err_msg\n"; 7} 8set_error_handler('test_error_handler'); 9error_reporting(8191); 10 11 12echo "Object with no __toString():\n"; 13$obj = new stdClass; 14echo "Try 1:\n"; 15try { 16 printf($obj); 17} catch (Error $e) { 18 echo $e->getMessage(), "\n"; 19} 20printf("\n"); 21 22echo "\nTry 2:\n"; 23try { 24 printf($obj . "\n"); 25} catch (Error $e) { 26 echo $e->getMessage(), "\n"; 27} 28 29echo "\n\nObject with bad __toString():\n"; 30class badToString { 31 function __toString() { 32 return []; 33 } 34} 35 36$obj = new badToString; 37echo "Try 1:\n"; 38try { 39 printf($obj); 40} catch (Error $e) { 41 echo $e->getMessage(), "\n"; 42} 43printf("\n"); 44 45echo "\nTry 2:\n"; 46try { 47 printf($obj . "\n"); 48} catch (Error $e) { 49 echo $e->getMessage(), "\n"; 50} 51 52?> 53--EXPECT-- 54Object with no __toString(): 55Try 1: 56printf(): Argument #1 ($format) must be of type string, stdClass given 57 58 59Try 2: 60Object of class stdClass could not be converted to string 61 62 63Object with bad __toString(): 64Try 1: 65badToString::__toString(): Return value must be of type string, array returned 66 67 68Try 2: 69badToString::__toString(): Return value must be of type string, array returned 70
