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String,  
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1) What is the output of the following code? <?php echo substr('1234567', 0, 3);




2) What will be the output of the following? <?php if ("123abc"== 123) { echo "Strings are equal!" }




3) What is the output of the following code? <?php if (strpos('a', 'abc') === false) echo strpos('abc', 'a');




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