使用php编写ondblclick事件的意外结果[关闭]

Question

i have the following echo in php:

echo "ondblclick=kardex(codigo=$codigo AND comprada<>0);";

i expect this echo result:

ondblclick="kardex(codigo=001 AND comprada<>0);"

but i get this:

ondblclick="kardex(codigo=001" and="" comprada<="">0);

How is the correct writing?

Answer 1

Your echo should produce a valid syntax, which it currently doesn't: you will need "s

This should work: echo "ondblclick=\"kardex(codigo=$codigo AND comprada<>0);\"";

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Alternatively you can use ', but you cannot interpolate with them:

echo ('ondblclick="kardex(codigo=' . $codigo . ' AND comprada<>0);"');