Using a PHP variable in a text input value statement

Question

I retrieve three pieces of information from the database  one integer  one string  and one date   I echo them out to verify the variables contain the data   When I then use the variables to populate three input boxes on the page  they do not populate correctly   The following do not work   id   lt input type  text  name  idtest  value  idtest gt    Yes  the variable must be inside  lt  php var    for it to be visible   So   id   lt input type  text  name  idtest  value  lt  php  idtest   gt    gt    The field displays     When I escape the quotes   id   lt input type  text  name  idtest  value    lt  php  idtest   gt       gt    the field then displays        With single quotes  id   lt input type  text  name  idtest  value   lt  php  idtest   gt      gt    the field displays nothing or blank   With single quotes escaped   id   lt input type  text  name  idtest  value    lt  php  name   gt       gt    the field displays        With a forward slash  I know that s not correct  but to eliminate it from the discussion    id   lt input type  text  name  idtest  value    lt  php  name   gt       gt    the field displays        Double quotes  escape double quotes  escape double quotes on left side only  etc  do not work   I can set an input box to a string  I have not tried using a session variable as I prefer to avoid do that   What am I missing here

User · Answer

Solution You are missing an echo  Each time that you want to show the value of a variable to HTML you need to echo it   lt input type  quot text quot  name  quot idtest quot  value  quot  lt  php echo  idtest    gt  quot   gt   Note  Depending on the value  your echo is the function you use to escape it like htmlspecialchars

User · Answer

If you want to read any created function  this how we do it    lt input type  button  value  sports  onClick  window open   lt  php sports     gt      self     gt

User · Answer

You need  for example    lt input type  text  name  idtest  value   lt  php echo  idtest    gt     gt    The echo function is what actually outputs the value of the variable

User · Answer

I have been doing PHP for my project  and I can say that the following code works for me  You should try it   echo   lt input type    text  value      idtest   gt

User · Answer

From the HTML point of view everything s been said  but to correct the PHP-side approach a little and taking thirtydot s and icktoofay s advice into account    lt  php echo   lt input type  text  name  idtest  value      htmlspecialchars  idtest       gt      gt

User · Answer

Try something like this    lt input type  text  name  idtest  value   lt  php echo htmlspecialchars  name     gt     gt    That is  the same as what thirtydot suggested  except preventing XSS attacks as well   You could also use the  lt    syntax  see the note   although that might not work on all servers   It s enabled by a configuration option

[php] Using a PHP variable in a text input value = statement

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