Php critical error
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Hello there, i need help with my code, in the tryit editor on w3shcools it works, but when i paste it on the php block on my website, the website shows me a critical error, can anyone help me with this?
<script> function myfunction() { if(1+1=2) { <?php $src= "myimg2.png"?> } else { <?php $src= "myimg.png"?> } }; </script> <img width="60" class="image2" src="<?php echo $src?>" />
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Several things:
– Inside a “script” block you do not use<?php, it is all assumeb to be PHP
– You are defining a function named “myfunction”, but the code will not be executed until the function is invoked. And then the variable “$src” is local to the function at the moment.
– note addition of various ; and other stuff.
– note that within double quote strings that php variable are replaced.
What you presumably need is more like, (NB: this may not work but is an improvement) :<script> $src = "needs to be set somehow"; function myfunction() { global $src; if(1+1=2) { $src= "myimg2.png"; } else { $src= "myimg.png"; } }; </script> <?php myfunction(); ?> <img width="60" class="image2" src="$src" />In case someone has a problem like this one, i’ve been testing some things and the solution is this:
<script> function myfunction() { if(1+1=2) { document.getElementById("image2").src= "myimg2.png"; } else { document.getElementById("image2").src= "myimg.png"; } }; </script> <img width="60" src="" />
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